1996: Border Rivers Basin Center map Traffic Bicycling Transit Get Directions 1996: Pesticides Detected – Endosulfan, Atrazine, Diuron & Prometryne. Source of contamination: Crops : Irrigated cotton, sorghum, maize. Where found: Rivers & streams. Reference: Cooper 1996. http://www.environment.gov.au/node/21899#pesticidesininlandwaters