1995 April – 2006 May: Broken Creek (Vic). Pesticides detected: Glyphosate.

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Goulburn Murray Water use Glyphosate to control Typa spp., Phragmites spp in irrigation channels and drains. Also in water couch in drains.

Normal rates 6-9L/ha for perennial weeds. 1-3L/ha for annual grasses. Residue limit is 0.1ppm. In natural waterways into which drains discharge the limit is 0.01ppm.

Glyphosate is sprayed directly into creeks and rivers to control aquatic weeds – Broken Creek and Nine Mile Creek.

Goulburn Murray Water – Detections of Glyphosate Broken Creek

8/5/06: GMW Broken Creek Glyphosate 160ug/L

8/5/06: GMW Broken Creek Glyphosate 85ug/L

6/4/95 Broken Creek downstream Devenish Glyphosate 170ug/L

6/4/95 Broken Creek downstream Devenish Glyphosate 20ug/L

6/4/95 Broken Creek downstream Devenish Glyphosate 18ug/L