1998 May – 2018 Jan: Hope Valley Water Treatment Plant (SA). Pesticides detected: Simazine, Atrazine, Chlordane, Dieldrin, Aldrin, Triclopyr, MCPA.

Hope Valley Water Treatment Plant

1998 May 14 Simazine 1.89ug/L (loc 9)

1998 September 15 Simazine 0.76ug/L (inlet)

1998 September 17 Simazine 0.65ug/L (loc 9)

1998 October 13 Simazine 0.6ug/L (inlet)

1998 October 19 Simazine 0.7ug/L (inlet)

1998 October 26 Simazine 0.62ug/L (inlet)

1998 November 2 Simazine 0.54ug/L (inlet)

1998 November 9 Simazine 0.56ug/L wtp

1998 November 18 Simazine 1.24ug/L

1998 November 30 Simazine 0.99ug/L

1998 December 7 Simazine 0.58ug/L

1998 December 14 Simazine 0.93ug/L

1998 December 22 Simazine 0.62ug/L

1998 December 30 Simazine 0.68ug/L

1999: January 4 Simazine 0.64ug/L

1999: July Atrazine 0.5ug/L (after storage)

2002 March 4 Chlordane-g 0.04ug/L

2002 March 4 Dieldrin 0.03ug/L

2003 January 6: Aldrin 0.01ug/L

2011 June 27 Triclopyr 0.2ug/L

2011 June 28 Triclopyr 0.2 (Loc 9)

Hope Valley WTP Inlet 2011-18

8/7/11: Triclopyr 0.2ug/L (Product Before Storage)

11/7/11: Triclopyr 0.2ug/L

25/7/11: Triclopyr 0.1ug/L

22/8/11: Triclopyr 0.1ug/L

3/12/12: MCPA 0.08ug/L

3/12/12: MCPA 0.05ug/L

31/12/12: MCPA 0.06ug/L

30/1/13: MCPA 0.07ug/L

25/2/13: MCPA 0.05ug/L

9/9/13: MCPA 0.05ug/L

1/12/14: Triclopyr 0.1ug/L

16/10/17: MCPA 0.07ug/L

13/11/17: MCPA 0.08ug/L

11/12/17: MCPA 0.08ug/L

22/1/18: MCPA 0.09ug/L