How does a Superfund site get cleaned up?
When the cleanup starts, there is always a lot of work to be done. Usually EPA will put a fence around the area that is being cleaned up. The fence helps make sure that people and animals do not come in contact with any of the toxic waste. Sometimes many parts of the environment are polluted. There can be toxic waste in the soil, the air, in lakes, streams, and rivers, or even in the groundwater, which is water that flows beneath the surface of the ground. If the pollution covers a large area it will take a lot of people and lots of different machines to clean it up. The cleanup work will continue until the contamination is no longer a threat to humans, animals, and the environment. It will sometimes take many years to clean up a polluted area.