Swales and Berms
Many downspouts and drains aim the stormwater directly at the stormdrains, sending whatever pollutants it carries into our waterways. By redirecting the water to a vegetated area, the water is slowed down to reduce erosion and infiltrated into the ground to be cleaned.
Instead of letting water from your rooftop or driveway go straight into the storm drain, you can intercept your water and direct it into gardens or woodlands using swales and berms. Swales are depressions that accept and infiltrate stormwater runoff, or direct it to a vegetated area such as a rain garden, where it can be absorbed. Berms are small mounds of earth or rock which keep water from flowing in a certain direction.
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