From the Detroit Free Press, which usually only prints our fluffy press releases about how great Ford is:
A fuel spill at the Ford Flat Rock Assembly Plant has been identified as the source of vapors containing the potential carcinogen benzene in the city's sanitary sewer system the past few days, a spokeswoman with the Michigan Department of Environment, Great Lakes and Energy said Friday.
"(Ford) has taken measures, including inserting plugs into the onsite sanitary sewer system to prevent it from entering the city’s sanitary system, at a location north of Gibraltar Road at the Ford Flat Rock Assembly Plant property," EGLE spokeswoman Jill Greenberg said.
Greenberg said initial estimates are that between 1,000 and 3,000 gallons of unleaded fuel spilled from the leak at the Ford plant.