Local residents are bringing in lawyers and Erin Brockovich for a class action against Orica following a chemical spill last week at its Kooragang Island ammonia plant.
Queensland based firm Shine Lawyers has already begun speaking to families affected by the accident.
The explosives manufacturer was forced to shut down its plant last Monday night after hexavalent chromium, or chromium six, escaped from the facility, according to The Herald.
Reportedly, close to ten kilograms of the chemical was accidentally released.
Orica has come under fire for not immediately notifying local resident or authorities about the spill.
The company’s General manager James Bonner said the company was initially focused on containing the spill, but added that authorities should have been contacted immediately.
“We regret that," Bonner said.
"It’s clearly something, part of our incident review; an investigation will be trying to understand why authorities weren’t notified sooner.
"But the following morning they were notified, ensuring that they were briefed on what has occurred."
Workcover NSW has begun investigations into the incident.
At the time, NSW chief medical officer Kerry Chant said the risk to health is minor.
Subsequent testing found chromium levels were reportedly ‘low’ and ‘no risk to humans’