EnviroBasin™ - Windsor, Ontario Case Study

LOCATION: Windsor, Ontario

‍CATCHMENT AREA: 0.078 ha

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PROJECT CHALLENGE:‍

Traditional end-of-pipe oil and grit separators (OGS) require all stormwater flows, regardless of pollutant concentration, to pass through a single downstream device. This often leads to oversized infrastructure, higher capital costs, and accelerated maintenance requirements, particularly when exposed to high volumes of gross pollutants.
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The project required an efficient, compliant, and cost-effective solution that could deliver could deliver 80% TSS removal of the ETV (20-1000μm) PSD of water quality performance without using a downstream OGS in addition to the catch basins already required on the project.

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SOLUTION:‍

The EnviroBasin™ is an advanced water quality inlet that is ETV certified to Oil & Grit Separator (OGS) performance with the use of flow modifying components and the proven power of LittaTrap™ inlet filter. This all-in-one system incorporates a modified LittaTrap inlet filter, in addition to other flow-modifying components, to capture 100% of gross pollutants and enhance the capture of sediment and hydrocarbons directly at the source.

ETV-verified and compliant with Canadian Oil and Grit Separator standards, the EnviroBasin™ replaces conventional catch basins while delivering significantly improved water quality performance.

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DESIGN ADVANTAGES:‍

• At-Source Treatment: Enables targeted sizing for high-pollutant “hot spot” areas while excluding low-pollutant sources such as roof runoff and rear lots.
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• Infrastructure Reduction: Eliminates the need for downstream OGS units, resulting in fewer pipes, manholes, and stormwater structures.
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• Cost Efficiency: Avoids oversizing and reduces both capital and long-term maintenance costs.
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• High Performance: Achieves over 80% ETV (20- 1000μm) TSS removal and captures 90% of runoff volume at the inlet.

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THE ENVIROBASIN™ IS AN IDEAL PRE-TREATMENT SOLUTION FOR:‍

• Low Impact Development (LID) systems
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• Infiltration practices
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• Rain gardens
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• Tree cells
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• Urban green infrastructure

By capturing 100% of gross pollutants before runoff reaches the sump or downstream systems, the EnviroBasin significantly extends the sump vactor maintenance intervals and preserves the performance of downstream infiltration-based assets that are otherwise prone to clogging from trash and coarse sediment.

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CONCLUSION:‍

The Windsor EnviroBasin™ installation demonstrates how at-source stormwater treatment can outperform traditional end-of-pipe approaches such as OGS, by delivering over 80% ETV (20-1000μm) TSS removal and 100% trash capture all in one, reducing infrastructure complexity, costs, and supporting long-term sustainability goals. With verified performance and flexible design application, the EnviroBasin™ sets a new benchmark for modern stormwater management.

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