Figure : example years of cumulative flow from April 1st and the identified 500ML threshold identified for the Yaldara Gauging station (Barossa Valley Gorge).
As for the low flow threshold assessment, the value of Lyndoch Creek was based on Jacob Creek and set to 95 ML. Duckponds Creek was initially set to 95 ML in line with upper Flaxman Valley, however, this value was deemed to be too high with the majority of years not ‘breaking’. A lower value of 70 ML produced more sensible results. Based on the thresholds reported in Table 3, the date of the break of season was identified for each year and the number of days between the break of season and the first of April calculated for each of the zones (Figure 3). While the data showed great variability in the delay in the break of season, there is a clear trend of increasing delay, especially since the end of the Millennium Drought.