Minnesota is being accused of not being aggressive enough in cracking down on water polluters in the state.
A Minnesota Center for Environmental Advocacy report suggests two-thirds of Minnesota companies had at least one violation over the past five years.
But Author Michael Schmidt says few faced any penalty.
"The State has the authority and the obligation to make sure the facilities comply with their permits," says Schmidt. "and having 2/3rds out of compliance shows they are not doing that."
The report claims Boise's Mill in International Falls was among few companies with violations that actually had enforcement action taken against them.