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Storm Water Runoff

What type of landscape elements are in this image? They are commonly used near parking lots and are designed to treat surface runoff water by removing silt and pollution before the drainage course delivers the water to a watershed or storm sewer.

A. Retention ponds
B. Detention ponds
C. Bioswales
D. Silt fences

AnswerC. Bioswales. The foreground bioswale is under construction, while the background bioswale is well established.

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