Rain gardens, shallow depressions containing bark mulch and shrubs, can remove up to 99% of toxins from rainwater run off. With built-up urban areas generating nine times more runoff water than woodlands of a similar size anything that can act as a buffer has to be welcomed.
Technorati tag: Water Runoff, Rain Garden
1 comment:
One of the best raingarden development programs in the United States is run by the West Michigan Environmental Action Council. You can check them out at www.wmeac.org
Peace,
Jerome
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