Chlorsulfuron
- 2015 August: Oodlawirra Reservoir. Pesticide: Chlorsulfuron
- 2011 – 2022: Middle River, Kangaroo Island. Pesticides detected: MCPA, Triclopyr, Chlorosulfuron, Simazine
- 2011 – 2023: Gumeracha Weir 2.6km upstream. Pesticides detected: MCPA, Triclopyr, Dicamba, Chlorthal-Dimethyl, Chlorsulfuron, Metsulfuron Methyl, Picloram