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Project: Case Study 1

D-Rainclean: Extension to existing commercial building.

D-Rainclean: Extension to existing commercial building.

Due to having no or little room to put seperators, as part of the SUDS design, the use of our filter material was best practice, something in turn which would have been accepted and approved by the local flood authority.


Due to the site having a high water table, putting in traditional SUDS or Priorety treatment device could be problematic, so therefore using the filter material in a dry basin allowed the site to be kept shallow as the water was treating the surface run off.

Our filter media was deployed into a dry basin. The Surface yard drains into the dry basin allowing the filter media to treat surface water run off and enhancing SUDS overal on the project.


One of the key creditentials within the LLFA was that they wanted Greenery in the form of SUDS. The use of our filter media benfited from this, with it being an organic material it supports bio diversity and amneity values and allows vegetation within in it to grow.

he adopted stormwater management solution successfully addressed the site’s spatial constraints and high groundwater levels by incorporating the filter material into a shallow dry basin design. This approach delivered effective treatment of surface water runoff without the need for separators or deep excavation, reducing construction risk and complexity. Fully aligned with best-practice SuDS principles, the solution met regulatory requirements and was accepted by the Local Flood Authority, providing a robust, compliant, and sustainable drainage outcome. For sites facing similar constraints, Stormwater Management Ltd can provide expert guidance and proven treatment solutions to help deliver compliant and efficient SuDS designs.

D-Rainclean: Extension to existing commercial building.
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