Testing at Mt Crosby water treatment plant has revealed elevated levels of PFAS, or “forever chemicals,” raising concerns among Brisbane residents about potential health risks from their drinking water.
Elevated PFAS Levels and Community Alarm
Data obtained through Right to Information requests showed that PFAS levels at the Mt Crosby treatment plant reached 36 parts per trillion (ppt) last year and 23 ppt in 2024. These levels are within Australia’s current guidelines, allowing up to 560 ppt, but far exceed the United States’ limit of 4 ppt, prompting Australia to update its standards. The plant, responsible for processing most of Brisbane’s water, has become a focal point in a broader debate about the safety of drinking water across the region.
PFAS, a group of synthetic chemicals used in products like firefighting foam, non-stick cookware, and textiles, persist in the environment and accumulate in human bodies. High concentrations have been linked to health issues such as cancers and kidney disease. Advocacy groups, including Stop PFAS Action Group, argue that Australia’s limits are outdated and insufficient to protect public health.
Seqwater’s Assurance Amid Scrutiny
Seqwater, the authority responsible for Brisbane’s water supply, insists that drinking water from Mt Crosby and other plants remains safe and complies with Australian Drinking Water Guidelines (ADWG).
A spokesperson stated that PFAS levels in treated water have consistently been below the national limits since monitoring began in 2018. Nonetheless, Seqwater plans to enhance its testing protocols using advanced passive sampling technology starting in 2025.
The ADWG is currently under review, with proposed updates expected to reduce allowable PFAS levels to 200 ppt by mid-2025. Seqwater has supported the revision and confirmed its commitment to adhering to new standards once implemented.
Calls for Stricter Standards and Accountability
Community members and advocacy groups remain sceptical of Seqwater’s assurances. Jon Dee, the founder of Stop PFAS Action Group, has criticised the current guidelines, highlighting the discrepancy between Australian and US standards. Mr Dee pointed out that residents are exposed to PFAS levels significantly higher than what is considered safe internationally and called for immediate action to protect public health.
The situation has also prompted legal interest. Shine Lawyers is investigating the potential for a new class action for Queensland residents affected by PFAS contamination, citing concerns about long-term health impacts and property devaluation.
Broader Implications for Queensland
The issue extends beyond Mt Crosby. PFAS contamination has been reported at numerous locations across Queensland, including Capalaba, Lowood, and areas surrounding airports and military bases.
In Oakey, residents continue to fight for compensation after PFAS from an army aviation base contaminated local water supplies. Many residents there report serious health issues and diminished property values.
Local councils are also responding. Warning signs have been installed near water sources such as Oakey Creek, advising against swimming or consuming fish from the area. Community frustration is palpable despite these measures, with residents demanding greater transparency and accountability from authorities.
The Road Ahead
Australia has announced plans to ban the manufacture and importation of certain PFAS chemicals by 2025. Meanwhile, Seqwater has increased the frequency of its monitoring and continues to engage with the public and stakeholders as part of the consultation process for updated drinking water guidelines.
Published 9-Dec-2024
