Our sewerage system consists of a network of gravity and vacuum sewers, rising mains, pump stations and emergency relief structures. We have more than 3,400 kilometres of sewer pipes across our service area. This infrastructure is designed to transfer sewage from our customers’ properties to either the Western Treatment Plant (where most of the sewage goes) or to our Altona Treatment Plant.
In 2007-08, we spent $4.32 million on preventative maintenance and condition monitoring of sewer assets. Within that same period, we invested $9.6 million in sewer main renewals, with 30.6 kilometres of mains renewed.