Durango Telegraph - Municipalities turn to wetlands: Cities increasingly utilize natural filtration
Municipalities turn to wetlands: Cities increasingly utilize natural filtration

Mother Nature’s powers are increasingly being tapped by cities and governments around the country. More and more, naturally occurring wetlands are being used to clean up impurities in storm runoff. Some municipalities are even seizing on riparian areas to filter partially treated wastewater.

A vegetated wetland or pond helps settle out or break down suspended particles and other impurities through a process known as biofiltration. With wetlands, the water table is typically near the surface, and the silt can trap sediment and pollutants, and cycle nutrients.

Proponents argue that wetlands can

serve a duel purpose of enhancing water quality and continuing to serve as habitats for birds, small animals and abundant insect life.

However, not all wetlands contribute to water quality. Some wetlands filter out pollutants and greatly improve the quality of the water before it enters streams.

Others provide no significant water-quality benefits.

No determination has been made as to whether the Animas Meanders Ranch wetlands or those on an adjacent parcel would be beneficial.

– Will Sands

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