The management of stormwater runoff is a global challenge. Rain water landing on roof tops, yards, driveways, industrial sites, roads, etc., ends up in storm drains that ultimately drain into our streams, lakes, rivers and oceans. Sediment and harmful substances carried by stormwater runoff are damaging our environments and ecosystems. It’s a huge issue and challenge. Across the U.S. municipalities are increasingly enforcing NPDES, MS4 guidelines.