7/1/89 – 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 Jabiru Lagoon (near Wee Waa (NSW) 0.3ug/L.

1989 January: Endosulfan detected 0.3ug/L Jabiru Lagoon NSW

1991 – 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 Jabiru Lagoon (near Wee Waa (NSW).