2004 – 2013 October: Prospect Water Filtration Plant. Pesticides: Triclopyr, 2,4-D

Prospect Water Filtration Plant

2004/05: 2,4-D 0.01ug/L (h)

(h) https://www.sca.nsw.gov.au/__data/assets/pdf_file/0020/36272/Appendices.pdf

2005/06: 2,4-D 0.01ug/L (g)

(g) https://www.sca.nsw.gov.au/__data/assets/pdf_file/0019/36271/AWQMR06-appendicies.pdf

2006/07: 2,4-D 0.0225ug/L (f)

(f)https://www.sca.nsw.gov.au/__data/assets/pdf_file/0007/36268/AWQMR2007_Appendices.pdf

2013/14: Triclopyr 0.01ug/L (a)

(a) https://www.sca.nsw.gov.au/__data/assets/pdf_file/0005/47048/Annual-Water-Quality-Monitoring-Report-2013-14.pdf

The herbicide triclopyr was detected in a raw water sample collected on 16 May 2013 from the inlet to Nepean WFP, on 24 August 2013 from the inlet to Warragamba WFP and on 31 October at Prospect WFP. All detections were at a level well below the ADWG 2011 health guideline value.
Sydney Water. Quarterly Water Quality Report – 1 January 2014 – 31 March 2014
https://www.sydneywater.com.au/web/groups/publicwebcontent/documents/document/zgrf/mdy2/~edisp/dd_066241.pdf