Is there more than one type of contamination on the Barangaroo site?

Contamination from the Millers Point Gasworks principally contains wastes from coal fired gas production, including products such as coal tars.  These wastes are made up of a complex mixture of polycyclic aromatic hydrocarbons, petroleum hydrocarbons, benzene, toluene, ammonia, cyanide, ethylbenzene and xylenes (BTEX), phenols and other chemical substances produced in gas making processes.  The concentration of these chemicals on the site present a risk of harm to human health and the environment and must be remediated.

Asbestos in bonded form is also present within the fill materials on some sections of the site. This comprises building demolition materials that were used to reclaim the site after removal of the original finger wharves in the area. The presence of asbestos in fill materials is not the trigger for remediation on the site, but it is being removed as part of the remediation and excavation works.

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