Watershed Summary 

The Stony Creek Watershed lies within Washtenaw and Monroe Counties in Southeastern Michigan and contains portions of Pittsfield, Ypsilanti, York, Augusta, Milan, London, Exeter, Ash, and Frenchtown Townships, and very small parts of the cities of Ann Arbor, Ypsilanti, Milan, and the Village of Maybee. Sandwiched between the larger Huron River Watershed and the River Raisin Watershed, the Stony Creek Watershed is a long, narrow watershed (about 32 miles long and 8 miles at its widest) that is oriented northwest-southeast and tapers as it drains toward Lake Erie in Frenchtown Township just north of Monroe, MI. 

Several studies of water quality were conducted in the 1990s in various parts of the Stony Creek basin. A 1995 study by the Michigan Department of Environmental Quality concluded that the water quality and macroinvertebrate community in Amos Palmer Drain, one of the tributaries of the Stony Creek, were extremely impaired. A similar assessment two years later by the MDEQ concluded that water quality and the macroinvertebrate community in Amos Palmer Drain were extremely impaired. 

MDEQ Nonpoint Source Links 

• Watershed Management Plan (8,500 KB PDF) 
• Watershed Management Plan Appendices (510 KB PDF) 
• Stony Creek Watershed Planning Project fact sheet (190 KB PDF) 

Watershed Websites 

• Stony Creek Watershed Project 

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