Hexazinone detected at Bannockburn Basin, most likely as a result of a pollution incident at Korweinguboora Reservoir in late 2004.
4/3/05 Barwon Water Bannockburn Basin Hexazinone 0.19ug/L (0.0475%adwgh)
https://hancockwatch.nfshost.com/docs/BarwonWater.htm