ELI5: Explain Like I'm 5

United States regulation of point source water pollution

Okay, imagine your bathtub is the United States and the water coming out of the faucet is pollution. Now, let's say you want to make sure the water in your bath stays clean and safe to play in.

The government has rules called regulations that help keep our water clean. These rules put limits on how much pollution companies can put into rivers, lakes, and other bodies of water.

There are two types of pollution: point source pollution and non-point source pollution. Point source pollution comes from one specific place, like a factory, where the pollution is coming directly out of a pipe into the water. Non-point source pollution comes from many different sources over a wide area, like rainwater running off of roads and parking lots and washing pollutants into the water.

The United States regulates point source pollution in a few ways. First, companies that want to put pollution into the water have to get a permit that says how much they can put in and what they have to do to minimize the pollution. This is called a National Pollutant Discharge Elimination System (NPDES) permit.

To make sure companies are following the rules in their permit, the government does inspections and requires companies to report how much pollution they put into the water. If a company breaks the rules, they can be fined or even shut down.

The government also works with states and cities to make sure that the water going into our rivers, lakes, and oceans is as clean as possible. They do this by setting standards for the amount of pollution that can be in the water and by helping to fund water treatment plants that clean the water before it goes back into nature.

Overall, regulations help keep the water in our country clean and safe for all of us to use and enjoy.