Agricultural chemical levels compared to water quality guidelines for 95% ecosystem protection: In 2011, no Diuron, Atrazine or Endosulfan sulphates were measured at any of the water sampling sites. In 2014, only Atrazine was detected, and only near the exit point of Cattle Creek before the Walsh. The amount of Atrazine measured was 0.011 mg/L, only
just below the Australian and New Zealand fresh water quality guideline trigger value of 0.013 mg/L.
Northern Gulf Regional Management Group Annual Report 2014-15 (p32)