Recycled water quality depends on a number of factors, including:
• whether the sewage has come from industrial or domestic sources or a combination of both
• the quality of the raw sewage and what controls are in place to maintain and protect sewers and;
• the level and type of treatment undertaken
The quality of recycled water must be suitable for its intended use. Factors to consider include:
• the microbiological quality of recycled water
• nutrients (how many nutrients are in the water)
• salinity (how much total dissolved solids are in the water)
• other water quality requirements specific to each end use
Recycled water is very safe when guidelines are followed and it is used for the intended purpose. In Victoria, the EPA has set guidelines for using recycled water to protect human health and the environment. Victorian regulation has grouped recycled water into ‘classes’, based on its microbiological and physical quality.
For more information visit www.epa.vic.gov.au
Regular monitoring and reporting is required to ensure the quality of water being supplied is fit for use.
