Unspecified
- 2012 August – Gunbower Creek (Victoria) – Blue Green Algae
- 2019 February: Pooncarrie (New South Wales) – Blue Green Algae
- 2019 February: Lake Wyangan (New South Wales) – Blue Green Algae
- 2019 February: Lake Cargelligo (New South Wales) – Blue Green Algae
- 2019 January/March: Menindee (NSW) – Blue Green Algae, Fish Kills, Foul Tasting Water, Motor Neuron Disease?
- 2017 – Kempsey (New South Wales) – Cyanobacteria, E.coli
- 2018 May/2019 Feb – Griffith (NSW) Toxin Linked to Motor Neuron Disease Found in Australian Algal Blooms.
- 2013 May – Campaspe Reservoir (Victoria) – Blue Green Algae
- 2014/15 – Quambatook Storage (Victoria) – Blue Green Algae
- 2013/15 – Lake Lonsdale (Victoria) – Blue Green Algae
- 2013/14 – Lake Taylor (Victoria) – Blue Green Algae
- 2013/15 – Toolondo Reservoir (Victoria) – Blue Green Algae
- 2012/15 – Green Lake (Victoria) – Blue Green Algae
- 2016 February – Ewens Hill Reservoir – Blue Green Algae
- 2014/15 – Albert Park – Warrnambool (Victoria) – Blue Green Algae
- 2014/15 – Warrnambool – Brierly Basin (Victoria) – Blue Green Algae
- 2011 – April/May – Woodglen Storage Reservoir (Victoria) – Cyanobacteria Bloom
- 2015/16 – Heyfield (Victoria) – Blue Green Algae, Turbidity, Iron
- 2008 Jan/May – Tarago Reservoir (Victoria) – Cyanobacteria Bloom
- 2006/7 – Lake Glenmaggie (Victoria) – Cyanobacteria Bloom
- 2005/6 – Macalister River (Victoria) – Cyanobacterial Bloom
- 2016/17 – Devon North (Victoria) – Cyanobacteria Bloom
- 2015/16 – Leongatha Raw Water Reservoirs Nos 3 & 4 (Victoria) – Cyanobacterial Bloom
- 2013 +2016/17 – Foster Dam & Foster Raw Water Basin (Victoria) – Cyanobacterial Blooms
- 2013 + 2016/17 – Little Bass Reservoir & Poowong Raw Water Reservoir (Victoria) – Cyanobacterial Blooms
- 2013/17 – Korumburra Reservoirs No.1 & 3. (Victoria) – Cyanobacterial Blooms
- 2013 Feb/Mar – Agnes River (Victoria) – Cyanobacterial Bloom
- 2013 February – Cooks Dam – Agnes (Victoria) – Cyanobacetrial Bloom
- 2013/17 – Lance Creek Reservoir (Victoria) – Cyanobacterial Blooms
- 2005/14: Simpson (Victoria) – Blue Green Algae, Aluminium, Chloral Hydrate