Bioretention

In most cases the infiltration rate of the engineered soil in bioinfiltration systems exceeds the infiltration rate of the underlying soil. By adding storage underneath the bioretention system, you can shrink the footprint on the surface while maximizing annual infiltration and annual runoff reduction. This design practice can make bioinfiltration feasible for sites with marginal soils.

Green Roofs

Green Roofs are a tool to add storage, treatment, and runoff reduction on the rooftop – which is a significant source of contaminated runoff on most sites. In addition to being a LID tool, Green Roofs also reduce energy demand through temperature moderation of the building, provide urban habitat for many species, and reduce the heat island effect.

Porous Pavers

Replacing impervious surfaces with porous pavers provide infiltration and runoff reduction. They also provide treatment as the water infiltrates. Many impervious surfaces receive light or intermittent use. In these areas, alternative paving practices provide the infiltration and runoff reduction in addition to their intended use as parking, walkway, or courtyard.

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