"I felt this big boom and my chandelier in the dining room shook," Jennifer Jones said.

Mason residents describe hearing and feeling three big explosions at about 3 O'clock Friday.

"It shook my house," Adrianne Niswonger said. "It was almost like an earth quake, a quick shake."

When they came outside, they saw the Americhem Sales Corporation on North street engulfed in flames.

"When we arrived on scene, we had heavy black smoke and a lot of it coming from the scale building," Mason Fire Chief Kerry Minshall said.

The President and CEO of the company said a truck was being loaded inside the building, but he doesn't know why it started there.

"We had a tanker in the scale house either blew up or sparked a fire," Bruce Whetter said. "We don't know which."

Firefighters said the main goal was to keep it there because just yards away, blue silos house the company's chemicals, and just blocks away, there's a propane company.

"There would have been multiple explosions and a chain reaction and put us in the defensive mode," Minshall said. "We wouldn't be on the property right now."

It took several hours, but crews were able to contain the fire to one building, only one employee was taken to the hospital as a precaution.

"Thank God no one was hurt," Whetter said. "It was contained. It will be a bad incident, but we will soon be back in business."

Now that it's said and done, the president said they'll learn from it and move on.

Neighbors said they will too.

"It's scary, yes," Jones said.

But for a couple hours, it was a scary situation.

Americhem only works with non-hazardous materials, so you shouldn't be in danger, even if you breathed in some of the smoke -- according to a company spokesman.