The area of land that drains to a waterway such as a river or lake is its watershed. Each watershed is part of a bigger watershed. The Springfield area is made up of many small watersheds.
These small watersheds drain into one of 2 larger watersheds, the James River or the Sac River. Some portions of the Springfield area are not part of a smaller watershed, but drain directly into the James River or the Sac River. These 2 watersheds are each part of different, larger watersheds that eventually drain to the Gulf of Mexico.
Storm water pollution prevention not only makes a difference locally, but downstream as well. Find out where runoff from your home ends up by figuring out your watershed address.