A public information session will be held ahead of an investigation into a potential cancer-causing contamination at Kapooka.
The Wagga site is just one of many Defence bases believed to have used legacy firefighting foam, containing the toxic and carcinogenic ingredients, commonly known as PFAS.
The long-term effects of per-fluoroalkyl and poly-fluoroalkyl substances have raised international concern in recent years, with the US Environmental Protection Agency finding the family of industrial chemicals to be a significant health hazard.
As PFAS travel through water and take years to break down, various testings have been undertaken across the country to determine how far the substances have spread.
Wagga residents will be invited to hear details about the launch of an environmental investigation at Kapooka in early August.
The decision comes after the pollutant was found to have migrated from RAAF Base Wagga, through the Forest Hill storm water drains, seeping into the surface and ground water at the Gumly Gumly wetlands.
According to The Daily Advertiser, water-quality experts claimed the contamination at the Riverina site remained a threat to Wagga’s water table.
While NSW Health maintains there is "no conclusive evidence" the contaminants cause any specific illnesses, a Fairfax Media report this year found – at high-enough levels – consumption of the substances could cause immune dysfunction, reproductive issues and certain types of cancer.
In a statement, Defence said it had reviewed the available information and determined a detailed environmental investigation was required at and around Blamey Barracks.
A Defence spokesperson said the community session – date to be confirmed – would provide the Kapooka community and residents of surrounding areas with information about its processes and anticipated time frames.