2013 September: Macquarie River (Tas) at Woolmers Bridge. Pesticide detected: 2,4-D.

MACQUARIE RIVER AT WOOLMERS BRIDGE (#231)

5/9/13: 2,4-D 0.06ug/L

Source: Pesticide Water Monitoring Program – Routine Monitoring Results (Tas Govt)

https://dpipwe.tas.gov.au/Documents/Baseline%20Monitoring%20Program.pdf