Water Treatment Plants


Part of the water treatment plant at Lake Cochran, Williamtown NSW.

Moor's Drain and Oakey Water Treatment Plants

Defence has engaged an international environmental company Emerging Compounds Treatment Technologies, known as ECT2, to provide water treatment plants that aim to reduce the amount of PFAS on Defence bases and dispersing into the surrounding area.

Defence is utilising both ADF and commercial options to collect the plants from the US, and deliver them to Australia. The first plant has been delivered to Williamtown and is currently in operation. The second plant has been delivered to Army Aviation Centre Oakey and is currently undergoing commissioning.

Lake Cochran Water Treatment Plant

The Lake Cochran Water Treatment Plant (WTP) at Williamtown NSW is currently operational as an interim activity to treat water leaving Lake Cochran, ensuring that PFAS levels are below the adopted drinking water screening criteria (HBGV). The Lake Cochran WTP was developed by Synergy Resource Management.

The recovery of PFAS chemicals involves a multi-barrier treatment process utilising a range of different technologies including activated carbon and resin. The Lake Cochran WTP will continue for the short term whilst a long term solution is developed and implemented.



Lake Cochran water treatment plant web page

Construction Water Treatment Plant

Defence operates a Construction Water Treatment Plant (WTP)at RAAF Base Williamtown.

The WTP is treating PFAS impacted ground water, which is encountered during construction activities.

The WTP treats the water to below adopted drinking water criteria prior to it being discharged either onto open grassed areas on the Base, south of the runway or via re-injection when conditions allow.

This WTP will continue operations for as long as is required to complement construction activities.

This activity forms an integral part of Defence objectives to decrease contamination levels.