Dr. Jenny Deakin:

We have just shy of 5,000 water bodies in the country. All our assessments are based on the monitoring data and our models and tools. We look at more than 100 different datasets at water-body scale. We have a story, so to speak, for each of those water bodies about whether the water quality is satisfactory. If it is not satisfactory, we look at why not and at what the problems in the water are. Then we go back into the mini-catchment area and figure out what the predominant sources of the particular problem we see in that water are. That is done on an individual water-body scale. The next step is for the local authorities water programme to take our national dataset and do local-based science to get a more refined understanding of whether the issues are associated with a particular forestry coop, farm or septic tank. As a State, we have an enormous body of evidence to use to target the appropriate measure for the particular issue at hand. That body of knowledge and information is being built into the national inspection plan for septic tanks and the forthcoming national inspection plan for agricultural inspections. Those inspection plans are, as the Deputy said, risk-based and target the particular issues that have been found in particular areas.