Preventing pollution from entering waterways is much more affordable and effective than cleaning polluted water! We can prevent pollution and reduce the amount of runoff using Best Management Practices (BMPs).
Best management practices come in many different forms. Educating the public how to prevent stormwater pollution is one type. Laws that require people and businesses involved in earth disturbing activities, like construction and agriculture, to take steps to prevent erosion is another way to prevent stormwater pollution. There are also laws about litter, cleaning up after pets and dumping oil or other substances into storm drains.
In addition to the above actions there are also best management practices that involve how the stormwater is physically managed. These can include the creation of facilities like traditional stormwater ponds or using environmental site design to encourage a more natural drainage pattern.