Feature Projects



GreySmart empowering consumers to make sound choices and protect their environment when using greywater on residential gardens


Client: Smart Water Fund, Victoria. 

GreySmart consolidates a user friendly, informative and practical knowledge based website supported by extensive research that will allow individuals to practice safe and sustainable use of greywater. The website provides access to H2OmeCalc, a simple to use tool to help householders assess their greywater options and to select a greywater system suitable for their needs.


Before using temporary or permanent diversion of greywater and before installing a treatment system a number of factors need to be considered. These factors were:

  •  What is the best greywater use option for your home?

  • Household cleaning and personal care products

  • Basic greywater Do’s and Don’ts

  • Suppliers and manufacturers

  • Local, state and national approvals processes and guidelines

  • Installation and standards (includes H2OMESmart Plumbing)

  • Gardening tips, plant and soil information


Download a copy of the GreySmart paper submitted for OzWater'10 conference here.


Download a copy of the report describing the risk assessment methodology used for the GreySmart ranking here



Land capability assessment and environmental risk assessment for sewer mining at the Yarra Parklands and Melbourne Cricket Grounds (MCG)

Client: Subcontractor for Arup, reporting to the Melbourne Cricket Club.
Location: MCG Melbourne, Victoria, Australia

A comprehensive Land Capability (LCA) and Environmental Risk Assessment (ERA) for the use of recycled water in the Yarra Parklands for irrigation and the MCG for toilet flushing and wash down water was undertaken using the framework from the Australian Guidelines for Water Recycling. The proposed water will be recycled from a sewer mine nearby the Yarra Parklands via an underground sewage treatment plant (USTP) located within the Yarra Parklands.


The risk assessment included a Land Capability Assessment, risk workshop for all stakeholders, consideration of appropriate state and national guidelines and consultation of additional literature and data where considered appropriate.



Projects completed


Examples of other projects completed by Atura:


  • Managing Health and Stock risks from Helminth by optimising lagoon and ASP log removals and BMPs for operational management. SEW. 2016

  • Risk Assessment for using stormwater at Melbourne Olympic Park and AAMI Stadium, IVWater, 2015

  • Development of Sewage Quality Targets and Risk Trigger Values for ISQMS End Points (Seawater, recycled water, biosolids), Melbourne Water, 2013-15

  • Update of the Human Health-based Risk Assessment for Recycled Water Use at the ETP. A Quantitative Microbial Risk Assessment (QMRA). Melbourne Water, 2014

  • Audit of the Parafield Stormwater Harvesting and Managed Aquifer Recharge System for Non-Potable Use against the Stormwater Risk-Based Management Plan. Adelaide, South Australia.: Goyder Institute for Water Research Occasional Paper 14/1, 2014.

  • Risk Assessment for the Purposes of Policy Development. Potential Human and Environmental Exposure to Herbicides Applied by Confidential. 2014

  • Salinity relationships and impact in sewage, Melbourne Water, 2013

    • Determining the relationship between salinity parameters at the WTP

    • On ground impact on farming operation from salinity/sodicity of irrigation water

    • Salinity Sodicity Management Costs On-ground (SSMCO) Model

  • Quantitative risk assessment for beneficial use of biosolids from Western Treatment Plant by application to land, Melbourne Water, 2012

  • Management Framework for Recycled Water Quality and Use- Short course, IWES, 2008-2017

  • Representing Australia at the World Water Forum for Recycled Water Use, International Commission for Irrigation and Drainage, 2012

  • Review of pesticides influence on plants grown under glass house conditions, Melbourne Water, 2012

  • Risk assessment to plants grown with recycled water containing increased salinity for a short-term, Barwon Water, 2012

  • Estimation of fertiliser requirements for various areas irrigated with recycled water, Yarra Valley Water, 2012

  • Expert review on risk assessment workshop for stormwater reuse, City West Water, 2012

  • Australian Water School - Wastewater treatment and Water recycling, ICE WaRM, 2012

  • Market validation for a plant watering device, New South Innovations, 2011

  • Environmental risk assessment for Melton South/Toolern area, Western Water, 2011

  • Quantitative risk assessment for livestock watering with tertiary treated recycled water from the Eastern Treatment Plant, Melbourne Water, 2011

  • Sampling and testing program for biosolods, Melbourne Water, 2011

  • Risk assessment for specific pesticides discharged into the sewer by trade waste customers, Melbourne Water, 2011

  • Risks associated with changes in salinity and sodicity of recycled water used for irrigation (post desalinated water), Melbourne Water, 2011

  • Validation of a fugacity model for organic substances in biosolids from the ETP and WTP Melbourne, Melbourne Water, 2010-2011

  • Australian Coordinator for Recycled Water use in Horticulture, Horticulture Australia, 2005-2011

  • Public health issues associated with stock accessing waterways upstream of drinking water off-takes, Water Futures/Victoria Department of Health, 2010

  • Eastern Golf Club: Tier 1 Human Health and Ecological Risk Assessment of Proposed Biocide Usage, Robert Luxmore Consulting/Ecos Pty Ltd, 2010

  • Expert Advisory Panel for the Building for the Future: Leadership Program, Barwon Water, 2010

  • Member of the Agricultural Working Group for the Revision of the Australian Guidelines for Fresh and Marine Water Quality., National Environmental Protection Council, 2010

  • Land Capability Assessment and Environment Improvement Plan for Stormwater Recycling Melbourne Olympic Park (Including the Australian Tennis Centre), ARUP, 2010

  • Nationalisation of H2OmeCalc for GreySmart www.greysmart.com.au, Savewater!alliance, 2010

  • Quantitative Risk Assessment Recycled Water & Land application of biosolids, Melbourne Water, 2010

  • Land Capability Assessment and Environment Improvement Plan (EIP) for the MCG Sewer Mining Project, ARUP, 2010

  • GreySmart - Ensuring sustainable use of greywater. www.greysmart.com.au, Smart Water Fund, 2010

  • Explore potential reuse options for dialysis reject water for North West Dialysis Service, Melbourne Health and Smart Water Fund Project., 2009

  • Quantitative risk assessment for recycling of effluent water from the Eastern and Western Treatment Plant, Melbourne Water, 2009-2012

  • Land Capability Assessment and Environment Improvement Plan for Use of Class B recycled water for irrigation of the playing field at Mt Lilydale Mercy College. Updated 2010, Mt Lilydale Mercy College., 2008/2010

  • Requirements for rainwater and greywater systems in Australia, MPMSAA, National Water Commission and Standards Australia., 2008

  • Land Capability Assessment for the Manly Golf Course, LM Graham Reserve and Keirle Park., Sydney Water., 2008

  • Quantitative risk assessment modelling., Melbourne Water, 2009-2010

Prioritising the management of organic chemicals in raw sewage that could impact STP function and the quality of products re-entering the environment.

Client: Melbourne Water

Part of a detailed qualitative risk assessment of Melbourne Waters recycled water and biosolids. The project helps form part of a toolbox of models developed specifically to help Melbourne Water and the Melbourne metropolitan water retailers understand Substances of Interest (SOI) in raw sewage and how they impact the sewage treatment processes, operations, beneficial uses of recycled water and biosolids, and freshwater and marine systems where these products re-enter the environment. 


This first phase of the QRA involved creating a screening tool for organic chemicals (STOC) which is used to prioritise chemicals requiring detailed risk assessments, which may lead to the proactive management of the chemical to ensure future product quality assurances and minimise risk to endpoint receptors, such as humans, aquatic and terrestrial biota.

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