This project provides essential natural resource information on the health of our rivers and waterways and assists in making decisions about the sustainable management and use of the State’s water resources. The freshwater biological monitoring and assessment program throughout the State’s rivers and streams is to assess river health, using macroinvertebrates as indicators. The program uses the AUSRIVAS predictive models developed as part of the National River Health Program. The outputs of these models are core indicators of the State of the Environment Reporting and are also recommended for the NAPSWQ and NHT2 Monitoring and Evaluation programs. Data and outputs of this project are regularly used for condition and trend assessment for Water Resource Plans, SoE reporting and other assessment programs. Indices have been developed to separate impacts of flows from non-flow related impacts. This has been successfully applied in the Burnett and Pioneer WRPs.