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• Hydrology and suspended sediment transport in the Gulungul Creek catchment, Northern Territory: 2005-2006 Wet season monitoring (PDF 2.09 MB)

About the report

Gulungul Creek is a small left bank tributary of Magela Creek. The Gulungul Creek catchment contains part of the Energy Resources of Australia Ranger Mine tailings dam and will receive sediment generated as a result of the removal and rehabilitation of the tailings area. It is important that the hydrology and sediment transport characteristics in the Gulungul Creek catchment are investigated before rehabilitation at the mine site occurs. Continuous rainfall, runoff and mud (<63 mm and >0.45 mm fraction) concentration data collected at gauging stations on Gulungul Creek during 2005–06 are presented in this report. The mud concentration data collected upstream and downstream of the mine during 2005–06 were used to establish preliminary trigger values for an event-based Before-After-Control-Impact, paired difference design (BACIP). This comparison of event mud loads observed upstream and downstream of the mine will be used to provide the basis for future impact assessment.