From the Dayton Daily News:

Large-scale dredging to help restore Grand Lake St. Marys to health could be completed within two to two-and-a-half years, according to Larry Matteson Jr., vice president of an Iowa-based company with more than 30 years of dredging experience.

At the invitation of state Rep. Jim Zehringer, R-Fort Recovery, Matteson recently visited the 13,500-acre lake, currently shut down to all activities because of an environmental crisis caused by a toxic bacteria outbreak.

L.W. Matteson, Inc., located in Burlington on the Mississippi River, has removed millions of cubic yards of material from oceans, lakes and rivers. The massive problems at Grand Lake St. Marys, located in Auglaize and Mercer counties about 60 miles north of Dayton, are different, said Matteson.

“We’ve never dealt with something like you have there,” said Matteson.