Firefighters were called to the dump at about 3 p.m. on March 14 and remained on scene until the fire was officially extinguished at 5:30 p.m. March 16.
The fire department had firefighters on rotation Sunday night to try to contain the blaze. Four firefighters from Yellowknife were called in to provide assistance.
The fire was contained and under surveillance by the evening of March 15, but was not officially put out until late in the afternoon on March 16.
Vince McKay, acting fire chief of the Hay River Fire Department, said that the cause of the fire was a controlled fire in the burn pit that had grown out of control.
“They were burning clean wood planks and paper,” he said, “and we believe some paper drifted over to the construction material.”
McKay estimated that over 1.2 million gallons of water were used over the two days to put out the fire which affected an area the size of a football field.
No areas outside the landfill suffered from damages due to the flames.
The Hay River Fire Department is no longer monitoring the landfill for hot spots.