Material sold to more than 120 landowners from a regional waste centre south of Adelaide contains asbestos, South Australia's Environment Protection Authority (EPA) has informed the buyers.
The EPA said 127 people had been alerted that crushed concrete aggregate sold to them by the Fleurieu Regional Waste Authority (FRWA) contained the deadly contaminant.
According to the FRWA, the material was sold between December 2018 and March 2021 from the Goolwa, Strathalbyn and Yankalilla waste depots.
It has since been used for both public and private building and road works.
As required by the Environment Protection Act 1993, assessment reports for each affected property will be logged by the EPA on the public register.
In March 2021, the FRWA said it had "recently undertaken testing of its recycled road base material at the Goolwa Waste and Recycling Depot and has found a very small quantity of bonded asbestos within the stockpile".
The EPA's acting director of operations, Keith Baldry, said the agency was also advised by the FRWA of the asbestos in March 2021.
Two environment protection orders have since been issued to Alexandrina Council which is the EPA licence holder for the site.
Those orders stipulated that the council stop selling the crushed concrete material, identify locations where it had been used, engage an asbestos consultant to undertake assessments of each location and implement suitable remediation plans for each site.
The council was also required to provide the EPA with details of the assessment findings and remediation implemented.
Mr Baldry said remediation validation reports for each property, including details of the assessment and remediation processes, would be provided to the EPA.
Along with the reports being added to the public register, future owners would also be informed.
"This will ensure that any future disturbance can be undertaken safely and assurance can be provided that the properties are considered safe," Mr Baldry said.
