1981 December: Nine Mile Creek. Pesticides detected: 2,4-D

2 December 1981 SRWSC: Sampling of 2,4-D residues Arrowhead Weed Spray Program. “Inspection of Broken and Nine Mile Creeks with EPA representatives 26/11/81. “They did not express their original concern about the possibility that the figure of 0.004mg/L for continuous exposure of 2,4-D to aquatic organisms may be exceeded. Their main concern at this inspection was that some verification of our mathematical arguments was now necessary because the use of 2,4-D in a domestic water supply was an extremely contentious issue…”