Hidden Dune Filters Used To Treat Coastal Stormwater Runoff

Hidden Dune Filters Used To Treat Coastal Stormwater Runoff, RedOrbit, March 19, 2013. When it rains, untreated stormwater can sweep pollutants into coastal waters, potentially endangering public health. NC State researchers have developed low-cost filtration systems that are concealed beneath sand dunes and filter out most of the bacteria that can lead to beach closures. Michael Burchell, biological and agricultural engineering, featured.