Chlorthal
- 2010 December: Urgent Action Needed on Dioxins: Pesticides: Multiple
- 2011 – 2022: Gumeracha Weir 2.6km upstream. Pesticides detected: MCPA, Triclopyr, Dicamba, Chlorthal-Dimethyl, Chlorsulfuron, Metsulfuron Methyl, Picloram
- 1999 May – 2022: Little Para River Snake Gully Bridge (SA). Pesticides detected: Hexazinone, Simazine, Chlorthal-Dimethyl, MCPA, Triclopyr, Picloram, Metsulfuron Methyl.
- 1986 March – 1998 September: Hougraves Weir (SA). Pesticides detected: Chlorthal-Dimethyl, Simazine, DDE
- 1998 – 2022 : Mount Bold Reservoir. Pesticide Detected: Dieldrin, Chlorthal Dimethyl, MCPA, 2,4-D.