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A watershed is the area of land that drains into a lake or stream. Water traveling over the surface or through groundwater may pick up contaminants like sediment, chemicals and waste and deposit them in a body of water. We all live in a watershed. Watersheds can be small - like the area that drains into the creek behind your house. Or, watersheds can be large- think of all the land, streams and rivers that drain into the Mississippi River! A number of tools are available to help you better understand how watersheds work. The following links are from the U.S. Environmental Protection Agency:
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