For decades, stormwater runoff has been identified as one of the leading sources of pollutants to the environment. As rainwater falls into developed urban areas, the initial flush of contaminants from dryland is transported via runoff to the nearest body of water. With it carries a mix of toxic chemicals, vehicle emissions, disease-causing pathogens, and more. It hasn’t been until recently that the EPA and government bodies started addressing this crisis with more urgency.