Temporary Stormwater Surge Capacity

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Additional capacity when your Wastewater Treatment Works needs it most

During periods of heavy rainfall, additional stormwater storage capacity can help wastewater treatment works manage increased hydraulic loads. United Rentals can provide a temporary, automated system designed to integrate with existing site infrastructure. Combining temporary storage tanks, pumping systems, level monitoring, automated controls, telemetry and power generation, the system provides an integrated approach to managing additional stormwater volumes. Our in-house engineering team can also develop a bespoke, site-specific design tailored to your project’s operational requirements and unique constraints.

Automated stormwater storage and return

The United Rentals solution creates additional temporary surge capacity alongside the existing stormwater infrastructure.

During rising storm conditions, effluent can be transferred from the existing storm tanks into temporary storage tanks. Automated level monitoring helps manage the filling process and provides overfill protection. As conditions subside and capacity becomes available within the permanent system, stored effluent can be automatically transferred back into process to continue further treatment.

This creates a controlled divert, store, monitor and return process.

Effluent is transferred from primary storm tanks to temporary storage, with float or radar sensors controlling the filling process.

Automated high-level shutoffs terminate pumping operations when temporary storage tanks reach their maximum operating capacity, adding an important layer of operational protection.

As storm levels recede, stored effluent is automatically returned automatically back into process to continue further treatment.

Tank activity is logged via cloud-based telemetry, providing diverted volume data and automated compliance reporting.

Integrated telemetry modules can broadcast real-time SMS or email alarm notifications in the event of a mechanical or electrical failure.

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United Rentals can supply auxiliary power generation and distribution infrastructure to create a comprehensive temporary solution.

Storm Levels Rise

During heavy rainfall, increasing flows place additional pressure on the wastewater treatment works and its existing stormwater storage capacity.

Divert & Store

Effluent is automatically transferred from the primary storm tanks into temporary United Rentals storage tanks, creating additional surge capacity.

Monitor & Protect

Float switches or radar-based sensors monitor tank levels, while automated high-level shutoffs help protect the temporary system against overfilling.

Return When Capacity Is Available

As storm levels recede, stored effluent is automatically transferred back into process to continue further treatment through an automated, controlled drain-down cycle.

Remote visibility

Tank filling operations can be continuously logged, with access to a cloud-based telemetry dashboard for totalised diverted volume and spill-data trends supporting environmental compliance reporting. Automated weekly reporting can be generated and telemetry modules can provide real-time SMS or email alarms if a mechanical or electrical failure occurs.