Answer 3. A major storm water quality concern is "non-point source pollution." As the name implies, non-point source pollution comes from numerous locations all across the county and is carried through runoff. The types of pollutants include toxins, metals, oils, nutrients (fertilizers and pesticides), and fecal coliform bacteria from leaking sanitary sewers, farm animals and pet waste. These directly impact our water quality and now represent the #1 pollution sources to our waterways. Activities such as street sweeping, elimination of leaking sanitary sewers, increased cleaning of storm drains, and public education and outreach can help control or reduce these pollutants.