A mechanical fault in the boiler at Smithfield freezing works was the cause of thick smoke being emitted from the chimney.
Former district councillor and South Canterbury District Health Board member Terry Kennedy, who lives in Waimataitai, complained thick smoke with a "putrid smell" was pluming from the chimney early Friday and Saturday morning.
"On Saturday it was initially pouring down this way [Waimataitai] and, even with windows closed, was entering through the tile roof."
He said he had concerns for the health of residents near the plant and sent Smithfield a letter of complaint on Monday.
Alliance Group Smithfield Plant's manager, Rob Lindsay, said that, although they did not pick up the chimney problem on Friday, it was identified as a mechanical fault on Saturday and fixed that day.
Belts driving fans to help burn the coal had worn and slipped. Mr Lindsay said the boiler was stopped on Saturday to fix the problem.
An Environment Canterbury spokesperson said the last complaint to the Pollution Hotline about Smithfield was in mid-November last year.
- © Fairfax NZ News