Do your part to keep Auckland’s waterways, and ecosystems healthy by making sure your septic tank is well maintained, says Auckland Council. From June 2022, properties not connected to a wastewater network will be asked to provide Auckland Council with proof their onsite wastewater system is working well. “A regular check-up gives you assurance it is safe and means you can address small issues before they cause a big stink,” says Elizabeth Johnson, Safe Septic programme lead.