SWAP - Connecting Channel Supplies

Thirteen supplies in Michigan get their source water from the Upper Great Lakes Connecting Channels. The communities of Port Huron, St. Clair, Marine City, Marysville, and East China Township get their water from the St. Clair River; Point Haven, Highland Park/Grosse Point, and Mt. Clemens get their water from Lake St. Clair; and Detroit and Wyandotte get their water from the Detroit River. Intakes in the connecting channels are generally a few hundred feet from shore and in about 20 to 40 feet of water, although intakes located in Lake St. Clair may be under only a few feet of water. Connecting channels supplies intakes and their source water areas are highly sensitive to their natural setting. The susceptibility, or risk of contamination, from human activities ranges from high to moderately high.