FIRE CREWS worked Sunday to control a bushfire opposite Point Vernon's Eli Creek Waste Water Treatment Plant.
Crews from Torquay's Queensland Fire and Emergency Rescue and the Dundowran Rural Fire Service first attended the scene at North St, Point Vernon, at about 1.20pm.
The crews had left by about 4pm.
Torquay station officer Jason McCloskey said the cause of the fire was unknown at the time.
"The fire is burning safely within the area of the origin (but) is creating a bit of concern to Eli Waters' residents due to the the amount of smoke being produced," he said.
"We are containing it just by back burning around it (to) prevent any flare ups down the track."
The area was expected to smoulder before self extinguishing, he said.
SEVERAL fire crews are back burning in Point Vernon to contain a grass fire burning out of control.
The blaze started about 1.30pm on Sunday near Tooth St and Ibis Blvd.
A large smoke haze may affect residents in the vicinity of the Hervey Bay Golf Club.
The Queensland Fire and Rescue Service advise residents in the area to close windows and doors.
Motorists are urged to drive with caution and to conditions.