Areas of Concern

  • Michigan Great Lakes Areas of Concern Program Banner

    small AOC map of MichiganThe Great Lakes form a portion of the international boundary between the United States and Canada, and both countries have jurisdiction over their protection and restoration. The Great Lakes Water Quality Agreement between the United States and Canada was developed in 1972 and established objectives and criteria for the protection, restoration and enhancement of water quality in the Great Lakes system. A revised GLWQA was signed in 1978 recognizing the need to understand and effectively reduce toxic substance loads to the Great Lakes, and another in 2012 to better identify, manage, and prevent current and emerging environmental issues from affecting the waters of the Great Lakes, while upholding and modernizing commitments made in previous Agreements.