In 2007–08, the ecosystem health of most the estuaries in South East Queensland improved. Improvements in ecosystem health have been observed in western Moreton Bay due to significant investments to reduce point source pollution through upgrades to wastewater treatment plants. No sewage signals were detected in Bramble and Waterloo Bays. However, the overall health of Moreton Bay remains the same (B-). Declines in ecosystem health were observed in Southern Moreton Bay, Broadwater, Eastern Bay and Eastern Banks due to the impacts of the January 2008 floods in the Logan and Albert River catchments. Southern Moreton Bay still shows a strong sewage signal.