1998 (Report Published) – Records of Fish Kills in Inland Waters of NSW and Qld in Relation to Cotton Pesticides.  Endosulfan used primarily on cotton crops and detected in Namoi River.

1990’s: Endosulfan detected in Namoi River

1998 (Report Published) – Records of Fish Kills in Inland Waters of NSW and Qld in Relation to Cotton Pesticides.  Endosulfan used primarily on cotton crops and detected in Namoi River.