National Drugs in Wastewater Testing Programme - Quarter 4, 2025
Results are now available for the fourth quarter (2025) of drugs in wastewater testing, which covers around 77% of New Zealand’s population.
The drugs tested for include methamphetamine, MDMA, cocaine, fentanyl, and heroin. These reports focus on methamphetamine, MDMA and cocaine as these drugs are routinely detected by the programme.