Lower Dawson Sub-basin: Pesticides [only those that were detected during LFWQMP] Summary Statistics Sites = Dawson River, Far Upstream of future inundation area (Beckers), sampled during Jul 2020 to Dec 2022 & Dawson River, Upstream of future inundation area (Boolburra and Baralaba), sampled during Sep 2022 to Dec 2022.

Diketonitrile: 0.03ug/L (max)

Atrazine: 3.56ug/L (max), 0.25ug/L (mean)

Hexazinone: 0.09ug/L (max), 0.02ug/L (mean)

Metolachlor: 1.64ug/L (max), 0.18ug/L (mean)

Propazine: 0.02ug/L (max)

Simazine: 0.03ug/L (max)

Tebuthiuron: 2.57ug/L (max), 0.91ug/L (mean)

Sun Water Lower Fitzroy Water Quality Monitoring and Reporting Program

Program Design, version 4 EPBC: 2009/5173 May 2024

Prepared for Sunwater by Nicole Flint, Catherine E. Jones and John C. Rolfe, CQUniversity Australia.

2020-22: Beckers, Dawson River (Queensland)

Lower Dawson Sub-basin: Pesticides [only those that were detected during LFWQMP] Summary Statistics Sites = Dawson River, Far Upstream of future inundation area (Beckers), sampled during Jul 2020 to Dec 2022 & Dawson River, Upstream of future inundation area (Boolburra and Baralaba), sampled during Sep 2022 to Dec 2022.

Diketonitrile: 0.03ug/L (max)

Atrazine: 3.56ug/L (max), 0.25ug/L (mean)

Hexazinone: 0.09ug/L (max), 0.02ug/L (mean)

Metolachlor: 1.64ug/L (max), 0.18ug/L (mean)

Propazine: 0.02ug/L (max)

Simazine: 0.03ug/L (max)

Tebuthiuron: 2.57ug/L (max), 0.91ug/L (mean)

Sun Water Lower Fitzroy Water Quality Monitoring and Reporting Program

Program Design, version 4 EPBC: 2009/5173 May 2024

Prepared for Sunwater by Nicole Flint, Catherine E. Jones and John C. Rolfe, CQUniversity Australia.