One crew remained on site into the evening to stop any flare-ups.
Crew from Waikaka, Waikaia, Riversdale and Balfour Volunteer Fire Brigades attended the scene.
“We are really grateful to the volunteer firefighters who left their holiday activities to fight this fire,” Bierlin said.
Bierlin said people may not have realised how easily dry grass could catch fire.
He urged people to not mow their lawns or engage in any other activity with could create a spark as there were no forecasts for significant rainfall until “at least” the end of the week.
“If you must mow, it’s best to do so in the early morning when the day is at its coolest,” he said.