Australian Government Department of the Environment Guidelines for Water Recycling
Australian Guidelines for Water Recycling: Managing Health and Environmental Risks (Phase 1) provides a generic 'framework for management of recycled water quality and use' that applies to all combinations of recycled water and end uses. It also provides specific guidance on the use of treated sewage and greywater for purposes other than drinking and environmental flows.
Australian Guidelines for Water Recycling: Augmentation of Drinking Water Supplies (Phase 2) extends the guidance given in Phase 1 on the planned use of recycled water (treated sewage and stormwater) to augment drinking water supplies. The document focuses on the source of water, initial treatment processes and blending of recycled water with drinking water sources.