Stormwater pollution results from rainwater picking up pollution and toxins and carrying it into water systems. These pollutants include oil, grease, bacteria, trash, and any other type of waste that is produced in cities and not disposed of properly or filtered with stormwater treatment. All of this waste is carried by stormwater into water ways that humans depend on for drinking water, and natural water sources such as lakes, rivers, and other places that the environment relies on. Without stormwater treatment, this rainwater is typically left untreated where it can cause a large amount of damage to the health of other animals and humans that drink it, as well as trees and other plant life that absorb it.

As the world continues to turn its attention to ways of preserving the planet and ensuring that it is safe to use for many generations, stormwater treatment and has continued growing in popularity among those that recognize the dangers of stormwater pollution. With stormwater treatment, stormwater runoff is able to be filtered and cleaned before it continues on to places where humans and other animals can access it. This reduces the chances of any type of pollution being able to harm those that access to water and rely on it to stay hydrated, and is also able to remove these pollutants from contaminating anymore water supplies. While the best way to prevent any type of stormwater pollution would be for humans to simply be cautious and follow the proper disposal methods for their trash, when this is not done stormwater treatment is the next best thing for helping the world to enjoy a clean and uncontaminated water supply, and allowing future generations this same benefit.