Fire and Emergency (FENZ) said firefighters were called to Solvent Rescue in Coleridge Street in the Sydenham suburb about 3.50pm last Thursday. Crews found one person unconscious and had to rescue two people from the building. Three people were taken to hospital, including one in a critical condition.
On Wednesday, FENZ said the callout was for a chemical spill of about 200 litres of trichloroethylene, a non-flammable, colourless liquid used mainly as a solvent to remove grease from metal parts. Trichloroethylene is also used in adhesives, paint removers, typewriter correction fluids and spot removers.
Solvent Rescue director Chris Bathurst told RNZ there was no spill. "Our distillation operator was cutting open a cold 210-litre drum of chemical waste paint thinner. He appears to have tripped and fallen on the concrete floor," Bathurst said in an emailed statement. "There was no chemical spill or release of vapours into the atmosphere. St John assessed all three of us and we were taken to the emergency department for observation, but everyone is recovering well."
Following subsequent inquiries from RNZ, Bathurst said the drum still contained 200 litres of the chemical and nothing was spilled or removed.
WorkSafe said it was still making enquiries and no decision had been made as to whether it would investigate.