• Malabar Parr Improvement - The Malabar Wastewater Treatment plant treats 635,000 properties across 500 square kilometers and is the largest primary waste water treatment plant in Australia.
  • Mardi Dam - Mardi Dam is an off-river storage dam located near the Wyong River. The redevelopment of this site allowed for a more effective water transfer from Mardi Dam to Mardi water treatment plant and increased the transfer capacity from 100 million litres a day to 160 million litres a day.