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The Etiwanda Wetlands in Mildura form part of an established storm water catchment and treatment system.  The wetlands provide a natural treatment of water using a sedimentation pond and wetland area.  A portion of this treated water could be used for local irrigation purposes.  This project tested the efficiency of floating reed beds in improving water quality for this purpose.
Having such a large number of visitors in a regional coastal area presents a challenge for the local environment, with toilet use in Phillip Island Nature Parks using valuable drinking water from the Candowie Reservioir, which in 2006 fell to just 4 per cent. With the local reservoir at risk of running dry, the Penguin Parade faced the task of…