Florida averages 55 - 60 inches of rainfall a year, with about two-thirds of that coming in the wet/rainy season, from June through November. When rain falls, South Florida landscapes are designed to channel excess storm water into communities' stormwater collection systems, into the swales in our driveways or other parts of our local or regional ponds, lakes or canals. Along the way, stormwater runoff can pick up all kinds of pollutants, including fertilizers and pesticides from lawns and yards as well as oils and coolant spilled from roadways and cars. Eventually, that stormwater runoff flows into lakes, rivers and wetlands and makes its way more gradually to the groundwater aquifers that supply our drinking water.