Practicing for a scenario they hope to never encounter. The Marietta Fire Department went underground to brush up on their confined space training.
The Department took it from the classroom to the outdoors.
Trainers from Cleveland State University assisted the fire fighters showing them the importance of every detail.
"They're trying to figure out what all the hazards are, a lot of times its a low oxygen environment, there could've been chemicals inside. We talk about what they need to do to evaluate and eliminate those hazards and then they need to know all the equipment, tie the knots, rig the different systems that they have," explains the trainer from Cleveland State University, David Ware.
Firefighters took on scenarios where the victim passed out in an underground storage tank.
"They're using their air supply, we're simulating a low oxygen environment, there's been two different types of packaging equipment, there was actually a small 18 inch tube that we lowered into this reservoir down there and we put the victim in there, they had to crawl in, package him up and get him out of the space," explains Ware.
The training was paid by a grant from Public Utilities Commission of Ohio. Firefighters are going through the training in groups-- lasting until Friday.