Wet Retention Ponds

Wet Retention Ponds

Wet ponds are highly cost-effective and widely used for stormwater treatment. These constructed basins maintain a permanent pool of water and often feature landscaped plants around their edges. As stormwater enters the pond, its velocity decreases significantly, allowing suspended particles to settle out. The treated water from the previous storm exits the system as new stormwater enters. Additionally, nutrient uptake through biological activity in the pond enhances stormwater treatment.

Maintaining Wet Ponds

Maintaining these systems is crucial for their proper functionality. As sediment builds up, the pond’s capacity to detain stormwater decreases, and the orifices leading to and from the pond can become obstructed. Maintenance usually involves weed control, debris removal, and inspection of the pond’s structures. Occasionally, sediment must be removed to restore the pond’s full stormwater storage capacity.

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