The Yarra Park Recycled Water Treatment Facility (RWTF) has been awarded with an Australian first ‘Excellent’ Infrastructure Sustainability (IS) Operations Pilot rating by the Infrastructure Sustainability Council of Australia (ISCA). The award was presented to Downer at ISCA’s annual Sustainability in Infrastructure Awards on Wednesday 21 October 2015.
“Downer and the Yarra Park RWTF team are to be congratulated on two fronts,“ said ISCA CEO Antony Sprigg. “Firstly, for their leadership in piloting the IS rating scheme in an Operational context and secondly, for achieving an ‘Excellent’ (IS) Operations Pilot rating.”
The plant is capable of producing more than 600 kilolitres of recycled water per day. As one of the first of its type, the facility was built underground and out of public view, ensuring it did not take away valuable surface land use or impact the amenity of the park. This innovative proof-of-concept design substantially contributes to the broader water market transformation towards sustainable development.
The team were recognised for their public commitment to sustainability in the Yarra Park Masterplan, monthly measuring and reporting on sustainability performance to senior management and their extensive knowledge sharing which had included the sharing of mistakes and development opportunities.
Since the plant was commissioned, Downer has been able to gain water efficiencies of 7% during summer operations and 8% during winter operations and has been able to supply 99.99% of potable water replacement demand. To date the Yarra Park RWTF has directly offset 291,818,800 litres of potable water.
The team monitored energy use and greenhouse gas emissions during the two years the plant has been in operation, enabling operational process improvements that have resulted in reduced energy consumption over the remaining 23 years of the asset’s operational life. In addition to this, substantial changes to chemical dosing, cleaning regimes and process philosophies have resulted in a reduction of 80 tonnes chemicals or 45% of materials.