The share of the population connected to secondary wastewater treatment in Australia stood at 22.85 units in 2023. Over the last two years, there was a consistent decline with a year-on-year decrease of around -1% each year. Looking over the past five years, the average annual decline (CAGR) was -0.87%. From 2013 to 2023, the values showed minor fluctuations but have steadily trended downwards.
Future trends indicate a continuous decrease, with the population share expected to reach 21.64 units by 2028. Factors driving this trend may include improvements in alternative water treatment technologies, shifts in population distribution, and potential changes in environmental regulations.
Key future trends to watch for:
- Advancements in water treatment technologies
- Regulatory changes impacting wastewater treatment standards
- Population growth and urbanization shifts
