The Society of Environmental Toxicology and Chemistry Australia (SETAC-AU) has recently hosted a series of Water Quality Guidelines workshops with the support of the Australian Contaminated Land Consultants Association (ACLCA). Key authors of the revised Australian and New Zealand Governments Guidelines for Fresh and Marine Water Quality (ANZG 2018, https://www.waterquality.gov.au/anz-guidelines) presented at the workshops. As one of the authors, Hydrobiology’s Dr Ross Smith presented on several of the key improvements to the guidelines, including the introduction of conceptual modelling, guidance for temporary waters, and monitoring.