Build Above, Store Below
Stormwater Management Systems

Subsurface detention and attenuation to manage stormwater runoff, reduce flooding risk, and preserve surface area for development or landscaping.

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Underground Stormwater Infiltration Solutions

Advanced geocellular control: shallow drainage & sub-base support, or high-capacity detention designed for Low Impact Development (LID).

Underground stormwater infiltration system cross-section showing permeable paving support.

Flow • Store • Support — Shallow Geocellular Drainage & Sub-base System

Multi-purpose shallow geocellular layer for rapid drainage and passive capillary wicking; stiffens and protects the sub-base when cover is tight. Connects to slot drains/underdrains for clean pick-up and keeps fines from pumping.

Installation of high-capacity underground stormwater infiltration tanks on construction site.

Flow•Hold•Infil — Integrated Subsurface Stormwater Management Systems

Large-volume, configurable subsurface system designed for deeper cover—focused on peak-flow attenuation and infiltration. Reduces stormwater runoff and helps protect groundwater through controlled recharge and pre-treatment.

Why Choose AQUA RainWater?

Manage stormwater below grade with detention and attenuation systems designed to meet verifiable SuDS performance standards.

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Innovation

Practical geocellular solutions combining proven civil methods with land-saving layouts.

Expert hydraulic and stormwater system layout design icon

Design

Site-tailored sizing and flow control for depth-constrained roads, car parks, and landscaping.

Reliable, structurally sound H-20 rated stormwater products icon

Trust

Specified by owners and designers for dependable peak-flow reduction and asset protection.

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Quality

From materials to manufacturing, systems are built for high performance and long service life.

Project Delivery & Compliance

We ensure project continuity through disciplined quality control and dependable supply, meeting rigorous AASHTO structural load requirements

Flexible terms — payment options that keep procurement straightforward.
Quality control — factory standards and accountable engineering consistent with
ISO 9001 manufacturing protocols.
Integrated sourcing — one coordinated package across core components and accessories.
Delivery coordination — agreed windows with proactive updates to protect the
critical path.
Tailored service — OEM/ODM options and practical field guidance for your site constraints.
Claims resolved fast — clear ownership and evidence-based fixes that restore performance.
Global delivery of underground stormwater infiltration modules for civil projects.

Case Studies

Two-tier pot fountain with LED spill and side reservoir jar

Stormwater Infiltration — South Al-Mutlaa City, Kuwait

South Al-Mutlaa City is Kuwait’s largest residential development, comprising 28,363 housing units across a 120 km² master-planned area. Implemented in cooperation with international experts, it represents a milestone in Kuwait’s urban expansion and will ultimately house around 400,000 residents.

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Residential Pond & Stormwater Landscape — Canada

The homeowner wanted to create a sustainable backyard pond that serves both as an aesthetic landscape feature and a functional stormwater management system. The project combined modular ARW Crate technology, durable EPDM pond liner, and ARW inspection wells to provide a fully integrated pond and rainwater management solution.

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Geocellular Tank — St. Petersburg New City Development

The St. Petersburg New City Development is a major urban expansion designed to deliver modern residential areas, public facilities and green spaces with reliable, sustainable stormwater management. Covering municipal roads, government buildings and public amenities, the project increases drainage capacity, reduces flood risk and preserves valuable surface land.

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Residential Stormwater Infiltration — Australia & New Zealand

In Australia and New Zealand, sustainable stormwater management in residential areas often requires managing runoff directly at the source. This project aimed to reduce surface flooding, improve water retention, and comply with Water-Sensitive Urban Design (WSUD) standards by installing underground modular infiltration systems beneath backyards and landscaped areas. The system integrates seamlessly into the residential environment without compromising green space or functionality.

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ARW Crate Installation at Residential Development — Murrieta, CA

During the installation of a stormwater management system at a housing development in Murrieta, CA, the project team encountered unexpected site challenges. Thanks to the modular design of ARW Crates, the system configuration was quickly adjusted without requiring a full redesign, ensuring no project delays.

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Become a Distributor / Find a Distributor

We partner with reliable civil suppliers and local contractors to deliver subsurface infiltration and detention systems at scale. If you are interested in carrying ARW geocellular tanks, chambers, and accessory geosynthetics—or need help locating a local channel partner—start here.

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Blogs

Constantly investing in the latest manufacturing technology and product development, we ensure our solutions remain at the forefront of our chosen markets.

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