Urban runoff is the single biggest threat to water quality in Southern California. As Urban development has spawned through cities and suburbs, we paved over the “spongy” parts of watersheds. The watersheds absorb and distribute water from rain that naturally cycles in our plants and eco system. These impervious surfaces, like parking lots, roads and buildings, cause water to flow over the surface of a watershed. This surface flow, also known as stormwater or urban runoff, causes problems in our creeks, rivers and lagoons including increased pollution, faster and flashier flows and increased erosion which then dump their remnants in the oceans where we play. We must continue to push for education about the impacts of pollution and development so that our communities make wiser decisions about these issues. Get informed and get involved.