Report 18 of the National Wastewater Drug Monitoring Program covered sampling in August and October 2022. In August, 58 wastewater sites were monitored nationally, covering approximately 57% of the Australian population.

Report 17 of the National Wastewater Drug Monitoring Program covers around 56% of the Australian population, which equates to about 14.1 million people. This is the first report that incorporates population estimates from the 2021 Census, making our estimates of the population being sampled more accurate.

Report 16 of the National Wastewater Drug Monitoring Program covers around 56 per cent of the Australian population, which equates to about 13 million people. Fifty-six wastewater treatment plants across Australia participated in the December 2021 collection, which monitored the consumption of 12 substances.

The Australian Criminal Intelligence Commission (ACIC) has commissioned The University of Queensland, and through it the University of South Australia, to undertake the data collection and analysis that underpins the report. This is the fifteenth report in the series.

The Australian Criminal Intelligence Commission (ACIC) has commissioned The University of Queensland, and through it the University of South Australia, to undertake the data collection and analysis that underpins the report.