Giardia
- 2015/17 – Paluma (Queensland) – Giardia, Cryptosporidium, Chlorate, Trihalomethanes, Turbidity, Iron
- 1998/2010: Sydney (New South Wales) – Giardia and Cryptosporadium
- 1998 August: Hope Valley Reservoir (South Australia) – Giardia
- 1998 July – September: (Sydney) – Cryptosporadium, Gardia
- 2010: Kurnell Desalinisation Plant. Ecoli
- test