| Date | Location | Pesticide | Value µg/L |
| 15/11/2012 | Lake Mulwala, Yarrawonga WTP | Atrazine | 0.01 |
| 13/06/2013 | Lake Mulwala, Yarrawonga WTP | Atrazine | 0.03 |
| 25/07/2013 | Lake Mulwala, Yarrawonga WTP | Atrazine | 0.01 |
| 30/07/2015 | Lake Mulwala, Yarrawonga WTP | Atrazine | 0.04 |
| 28/07/2016 | Lake Mulwala, Yarrawonga WTP | Atrazine | 0.05 |
| 13/06/2013 | Lake Mulwala, Yarrawonga WTP | MCPA | 0.04 |
| 13/06/2013 | Lake Mulwala, Yarrawonga WTP | Simazine | 0.04 |
| 30/07/2015 | Lake Mulwala, Yarrawonga WTP | Simazine | 0.03 |
| 28/07/2016 | Lake Mulwala, Yarrawonga WTP | Simazine | 0.04 |