LITTLE CHUTE - Fire crews responded to a call for a semi tractor on fire at Van's Septic Service, 2760 Elm Drive, Little Chute, around noon on Saturday.
Billowing black smoke was hard to miss throughout Little Chute, even as fire crews arrived on the scene.
"Within 5 minutes you couldn't see the building from across the road, smoke was so thick," said Perry Baxter, a Little Chute neighbor.
Neighbors were first alerted to the fire when something inside the building blew up.
"Right around noon I heard an explosion that I momentarily mistook for thunder, took a look outside and saw the building was on fire," said Baxter.
Van's Septic Service occupies the building. Inside were two trucks used to collect septic tank waste water.
"There was some explosions they can be attributed to tires blowing there was some fuel tanks in there may have blown," said Little Chute Fire Chief Mark Jansen.
Fire crews were on the scene within minutes, but Jansen says fire was already through the roof.
"It's going to be a total loss," said Jansen, who estimated 45 fire fighters helped at the scene.
The owner of the company had been onsite earlier in the day, according to his wife, but didn't notice any problems. The building is used for storage and equipment maintenance.
FOX11 is told many of Van's customers will be referred to another local septic service, since two trucks were destroyed. The owners hope in time to rebuild.
Fire officials were not able to immediately pinpoint a cause for the fire. And no damage estimate is known. No injuries were reported.