Stockton residents have every right to be concerned about the health impacts of last week's hexavalent chromium leak, US-based environmental activist Erin Brockovich said.
Listen to Newcastle Herald environment reporter Matt Kelly's interview with Erin Brockovich.
Ms Brockovich said she had hoped to attend community meetings this week but was unable to, however she hoped to visit Stockton within the next two months.
"I can't believe we are still dealing with this chemical. I feel very frustrated," Ms Brockovich said.
For a gallery of pictures charting the Orica chemical leak, click here.