2005 January – 2005 March: Hexazinone Pollution Stony Creek Reservoir 2 (Geelong Water Supply)

Hexazinone used on pine plantations was  detected in this reservoir for 6 weeks in 2005, due to a pollution incident at Korweinguboora Reservoir 30km upstream.

31/1/05 Barwon Water Upper Stony Creek Res #2 Hexazinone 0.18ug/L (0.045%adwgh)

7/3/05 Barwon Water Upper Stony Creek Res #2 Hexazinone 0.15ug/L (0.0375%adwgh)

7/3/05 Barwon Water Upper Stony Creek Res #2 Hexazinone 0.15ug/L (0.0375%adwgh)

https://baddevelopers.nfshost.com/Docs/GeelongWaterSupply.htm