Review of water quality data in HYDSYS database for the Daly River basin

A. Padovan, S. Townsend and A. Vandenberg
Department of Lands, Planning and Environment, Natural Resources Division

This report evaluates the database, using the Daly River Basin as a case study, by assessing the number of sites sampled, the parameters tested and the number of results available. The most frequently sampled sites were for the Katherine River, close to Katherine township. The samples collected from these sites were tested for their properties that affect the supply of potable water to the township. Overall, there is a paucity of water quality data of ecological significance. The exception is conductivity, alkalinity and calium concentrations for the Katherine River near Katherine, and some lower reaches of the Daly and Douglas Rivers; data from these sites could provide information on seasonal and inter-annual water quality trends.

The report provides an overview of Natural Resources Division's water quality database from a water quality management perspective.