Environmental Improvements
In 2004 we completed the largest upgrade of the treatment process in the plant's history. The $160 million upgrade was based on the findings of the four-year CSIRO Port Phillip Bay Environmental Study, which looked at ways of protecting the long-term health of Port Phillip Bay.
The Study found the Bay was healthy by world standards, with good water quality, productive fisheries and healthy populations of dolphins and seals. But it also found that nitrogen loads to the Bay from stormwater drains and effluent discharged from Western Treatment Plant were too high.
Find out more about:
- Nitrogen removal
- Recycled water
- Renewable energy
- Reduced odour and greenhouse gas emissions
- Improved wet weather capacity
- Western Treatment Plant Community Liaison Committee