Saginaw River and Bay AOC Boundary Map
The Saginaw Bay area, located in the east central portion of Michigan's Lower Peninsula, is a southwestern extension of Lake Huron. The physical boundaries of the Saginaw River/Bay watershed AOC are defined as extending from the head of the Saginaw River at the confluence of the Shiawassee and Tittabawassee Rivers upstream of the city of Saginaw, to its mouth, and all of the Saginaw Bay out to its interface with open Lake Huron at an imaginary line drawn between Au Sable Point and Point Aux Barques. Areas outside these physical boundaries, but within the Saginaw Bay drainage basin, are included in the RAP if they are known or suspected sources of contaminants to the Saginaw River and/or Saginaw Bay.
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