Diazinon
- 2014/23: Russell River at East Russell (Qld). Pestides: Multiple
- 2013/23: Mulgrave River at Deerel (Queensland). Pesticides: Multiple (2515 detections)
- 2017-2023: Mossman River at Bonnie Doon. Pesticides: Multiple
- 2017-2023: Daintree River at Lower Daintree. Pesticides: Multiple
- 2021/22: Normanby River at Kalpower Crossing. Pesticides: 2,4-D, Chlorpyrifos, Diazinon, Fluroxypur, Imidacloprid, Metolachlor, Terbuthylazine
- 22 December 2021: Macadamia farmer convicted and fined. Spray Drift
- 2003: Onkarparinga River Sediment (South Australia). Pesticides: DDE, Chlorpyrifos, Diazinon
- 2017 September: Pesticide Contaminates Drinking Water Dam near Ballina. Pesticide: Diazinon
- 2012-2016: Wodonga Creek. Pesticides: 2,4-D, Atrazine, Diazinon, Hexazinone, Malathion, MCPA, Simazine, Triclopyr
- 2012-2013: Nariel Creek Corryong. Pesticides: Diazinon, MCPA, Triclopyr
- August 2016: Household Pesticides Pose Biggest Exposure Risk to Children Under Five
- 1996 March – 2006?: Burwood Beach WWTW (NSW). Pesticides: Multiple
- 2013 Dec – 2014 Mar: Edmonton WWTP Qld. Pesticides: Multiple
- 2013 Dec – 2014 Mar: Southern WWTP Warep Qld. Pesticides: Multiple
- 2014 July – August. Lockyer Lake (Qld). Pesticides: Multiple
- 2014 July- 2015 Feb: Moogerah Dam (Qld). Pesticides: Multiple
- 2011-2013: Herbert River Queensland. Pesticides: Multiple
- 2012 March: Murrumbidgee Irrigation Area EMR. Pesticides: Atrazine, Diuron, Simazine, Diazinon, Metolachlor
- 2005 October – 2012 November: Murrumbidgee Irrigation Area WS. Pesticides: Multiple
- 2005 October – 2012 November: Murrumbidgee Irrigation Area MIRMCN. Pesticides: Multiple
- 2005 October – 2012 December: Murrumbidgee Irrigation Area MDJWE. Pesticides: Multiple
- 2006 July – 2012 December: Murrumbidgee Irrigation Area LMC. Pesticides: Multiple
- 2009 June – 2013 Feb: Murrumbidgee Irrigation Area BYD. Pesticides: Multiple
- 1993: Coleambally Irrigation Area Large Drains. Pesticides: Multiple
- 1994-95: Murrumbidgee Irrigation Area Surface Water: Pesticides: Multiple
- 1960’s – 1970’s. Pesticides used by Australia in Vietnam War: Dieldrin, Chlordane, Lindane, Diazinon, DDT, Malathion
- 2013 December – 2014 March: Picnic Crossing (Lake Tinaroo) Qld. Pesticides: Multiple
- December 2011 – March 2012: Billy Creek Strzelecki Ranges. Pesticides: Diazinon, Tebufenozide, Metalachlor, DDE, Dieldrin, Simazine
- December 2011 – March 2012: Middle Creek headwaters. Pesticides: Simazine, Diazinon, Metalachlor, Oxychlordane
- 2011 January – June: Bendigo Creek Huntly Post Locust Spraying. Pesticides: Fipronil, Diazinon
- 2013-4: Swanbank Power Station – Western Corridor Recycled Water. Pesticides: Multiple
- 1965 October: Proposal to aerial spray 90 Mile Beach (Vic). Pesticide: Diazinon
- 2006 September – 2007 August: Bull Creek (WA). Pesticides: Multiple
- 2006 September – 2007 August: Corfield Street, Southern River, WA. Pesticides: Multiple
- 2006 September – 2007 August: Belmont South (WA). Pesticides: Multiple.
- 2006 September – 2007 August: Perth Airport Main Drain. Pesticides: Multiple
- 2007 January – 2007 August: Helena River (WA). Pesticides: Multiple
- 2006 October – August 2007: Bennett Brook, Caversham (WA). Pesticides Multiple
- 2006 September – 2007 August: Bayswater Main Drain (WA). Pesticides: Multiple
- 1992: Coffs Harbour Spray Drift: Pesticides detected: Heptachlor, Chlordane, Dieldrin, Chlorpyrifos, Diazinon, Ethoprophos
- 2000 June: Gosford Council Fined. Pesticide: Diazinon
- 1998 June – 2000 November: Barossa Water Treatment Plant. Pesticides detected: Atrazine, Hexazinone, Diazinon.
- 1998 – 2022: Barossa Weir. Pesticides detected: Atrazine, Hexazinone, Diazinon, Simazine, MCPA, Metsulfuron Methyl.
- 2006 July – 2013 November: Jordan River (Tas) Mauriceton. Pesticides Detected: Atrazine, MCPA, Diazinon, 2,4-D, Metalaxyl, Triclopyr
- 1995-96: Perth Metropolitan Area
- 1994-5: Murray Irrigation Area
- 1991-3: Coleambally Irrigation Area Pesticides
- 2013 April: Narracan Creek (Vic) Pesticides and Potatoes
- 2013 April: Middle Creek Strzelecki Ranges Pesticide Residues