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Wastewater treatment plants
Sydney Water collects and treats more than 1.2 billion litres of wastewater from homes and businesses every day. Of this, Sydney Water recycles more than 36 million litres.
Our sewerage network services around 1.6 million homes and businesses in the Greater Sydney region.
Wastewater collected in the sewerage system flows to Sewage Treatment Plants (STPs) where it is treated before being reused or discharged to rivers or oceans in accordance with strict licence conditions issued by the Department of Environment, Climate Change & Water (DECCW). Almost all biosolids captured (99 per cent) are used for agricultural or horticultural purposes.
Around 75 per cent of wastewater is processed at Sydney Water's three largest STPs at Malabar, North Head and Bondi. DECCW monitors the effect of discharges on water quality and aquatic every.