Chevron Australia constructed an LNG plant near Onslow, Western Australia. The associated downstream dredging works were contracted to DIAU (Dredging International Australia). IMDC developed an operational sediment plume forecasting system to assess the effects of forecasted dredging works on the impact sites as part of a pro-active adaptive environmental management system. This system is called the Ecological Proactive Adaptive Management system, or ECOPAM.