South Australia

Christies Beach-Southern
Outfall

Christies Beach ocean outfall has two pipes (northern and southern) from three different wastewater treatment plant (A, B, and C) which are under Christies Beach WWTP. These plants employ the same treatment process, activated sludge, then followed by UV disinfection. They mainly serve the area of southern suburbs of Adelaide. The northern outfall pipe stretches about 570m out to sea is placed at about 100m from the existing outfall pipe. The second pipe, southern outfall, discharged through a chlorine contact tank via a 305m long open-ended outfall. Both outfalls discharge approximately 45 ML/day of treated effluent into the Gulf of St Vincent.