Stormwater runoff is a nonpoint source of nutrients that may cause eutrophication of the water bodies in which the runoff is discharged. Biofilters are BMPs designed to remove nutrients, total suspended solids, and heavy metals while maintaining an aesthetically pleasing environment. Design guidance for biofiltration basins for nutrient removal typically recommend planting numerous species of plants including both warm and cool season grasses, but ideal species are untested in the majority of the United States.
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