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Where not to use rain gardens
In some soils poised above precarious, steep, and eroding bluffs, shorelines around lakes, rivers, or in engineered soils designed to drain quickly, rain gardens may saturate underlying substrates and could hypothetically contribute to additional erosion, or slope failure. If there is any question about the opportunities or constraints of your site, get help from an ecologist, landscape architect or geotechnical soils specialist or engineer.
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