Watershed Summary
The 1,200 square mile Thunder Bay River watershed is 68% forested, 11% agriculture, 8% wetlands and open water, 10% urban built-up and 3% non-forest. The Thunder Bay River Watershed Plan was approved under the CMI administrative rules and was funded under section 319. Major pollutants include: 1) sediments from stream banks, road stream crossings and construction; 2) nutrients from agriculture, lawn care practices and septic systems, and 3) toxic pollution from storm water runoff.
MDEQ Nonpoint Source Links
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Watershed Websites
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