21 May 2003 West Tamar Raw Simazine 0.29ug/L, Treated Simazine 0.1ug/L (Source Agricultural Chemicals in Waterways. Tim Morris MP 28/2/08)

27 July 2004 West Tamar Raw Simazine 0.7ug/L (Source Agricultural Chemicals in Waterways. Tim Morris MP 28/2/08)

11 August 2009 West Tamar System Simazine 0.05ug/L (Source Agricultural Chemicals in Waterways. Tim Morris MP 28/2/08)

10 November 2009 West Tamar System Glyphosate 10ug/L

2 December 2010 West Tamar System 2,4-D 0.38ug/L

2 December 2010 West Tamar System Metsulfuron Methyl 0.14ug/L

2 December 2010 West Tamar System Atrazine 0.05ug/L

2 December 2010 West Tamar System MCPA 0.36ug/L

2 December 2010 South Esk System Sulfometuron Methyl 0.25ug/L

2 December 2010 South Esk System 2,4-D 1.03ug/L

2 December 2010 South Esk System Metsulfuron Methyl 0.45ug/L

2 December 2010 South Esk System Atrazine 0.05ug/L

2 December 2010 South Esk System MCPA 0.83ug/L

Source: Ben Lomond Water. Launceston Drinking Water.

15 August 2013 South Esk 2,4-D 0.17ug/L

15 August 2013 South Esk Simazine 0.12ug/L

15 August 2013 West Tamar Tap Simazine 0.09ug/L

Source Right to Information Act

11 August 2016: South Esk Trevallyn Dam MCPA 0.26ug/L

11 August 2016: South Esk Trevallyn Dam Prometryn 0.03ug/L

30 August 2016: South Esk Trevallyn Dam MCPA 0.11ug/L

8 September 2016: South Esk Trevallyn Dam MCPA 0.09ug/L

17 November 2016: South Esk Trevallyn Dam MCPA 0.09ug/L

TasWater Pesticide Data by system v4 2016/17