Investigations have found PFAS in groundwater to the eastern side of the airport and in surface water in Coolangatta Creek. The detection of PFAS is not unexpected given the past use of PFAS-containing fire-fighting foams at the site. PFAS has also been used in many domestic and industrial products and background levels may be present from these other sources.

Residents can continue to fish and eat seafood in the Cobakai Broadwater.