Water Treatment Milestone at Barangaroo

February 15, 2019

Water Treatment Milestone at Barangaroo

Enviropacific’s Water Treatment Plant (WTP) established at one of the country’s biggest urban renewal projects has hit a new milestone.


The WTP has been designed to remediate ground and surface water from the One Sydney Harbour Project at Barangaroo, on Sydney Harbour. The plant has been operating since April last year.

National Water Manager, Sagar Adhikari, says the WTP has been performing well to meet one of the most stringent discharge criteria.

“It was designed with a flow rate of 25l/sec or 90m3/hour… it has already treated more than 100 million litres of water,” said Mr Adhikari.

The plant is removing contaminants including metals, cyanide, TPH (Total Petroleum Hydrocarbons), PAH (Polycyclic Aromatic Hydrocarbon), BTEX (benzene, toluene, ethylbenzene and xylene), ammonia, Chromium and suspended solids.

“The water is continuously monitored throughout the plant as well as at the discharge point using a full suite of water quality parameters, to ensure it is ultimately safe to discharge into the Harbour,” he said.

Barangaroo is the site of the old Millers Point Gasworks facility, established and operated during early 1900. The gas works was decommissioned in 1921 but it resulted in a rich mix of contaminants, at significant concentrations below ground level, that needed to be removed prior to the site being redeveloped.

The plant is expected to continue operating until the end of 2020.