CARMI, IL (WFIE) - If you see the ground smoking in Carmi - chances are - it's just a sewer line project.
City officials tell 14NEWS they're filling sewer lines with smoke, now until Friday.
The smoke helps them find trouble spots in the sanitary sewer mains.
And that means - you might see smoke coming from people's yards or alleys and streets in Carmi.
It won't smell and it's non-toxic. There's also no fire hazard.
Testing will last a couple of hours in each area.