Ellendale (Tasmania) – Trichloroacetic Acid
August 20 2015 Ellendale (Tasmania) – Trichoroacetic Acid 150ug/L
2016/17: Ellendale – Trichloroacetic Acid 140ug/L (max), 75.33ug/L (mean). DBPs were detected above the ADWG health limits in July 2016 and October 2016. The Ellendale system does not have the ability to remove dissolved organic matter from the raw water and is therefore susceptible to DBP formation. Further work is occurring in optimising the system so that water is not extracted when the organic load is high. In accordance with the advice in the ADWG chlorine residuals are maintained to provide appropriate disinfection.
21/9/17: Ellendale – Trichloroacetic acid exceedance at EDSTE62 of 116 ug/L
12/10/17: Ellendale – Trichloroacetic acid exceedance at EDSTE62 of 104 ug/L
12/9/19: Ellendale – Trichloroacetic acid exceedance at EDSTE62 of 101 ug/L
8/4/20: Ellendale – Trichloroacetic acid exceedance at EDSTE62 of 104 ug/L
30/4/20: Ellendale – Trichloroacetic acid exceedance at EDSTE62 of 105 ug/L
7/5/20: Ellendale – Trichloroacetic acid exceedance at EDSTE62 of 103 ug/L
29/6/20: Ellendale – Trichloroacetic acid exceedance at EDSTE62 of 117 ug/L
8/10/20: Ellendale – Trichloroacetic acid exceedance at EDSTE62 of 109 ug/L
4/8/21: Ellendale – Trichloroacetic Acid (max) 170ug/L (av 2021/22 67ug/L)
9/9/21: Ellendale – Trichloroacetic Acid (max) 121ug/L (av 2021/22 67ug/L)
7/10/21: Ellendale – Trichloroacetic Acid (max) 139ug/L (av 2021/22 67ug/L)
3/11/21: Ellendale – Trichloroacetic Acid (max) 127ug/L (av 2021/22 67ug/L)
Australian Guideline Level: Dichloroacetic Acid 0.100mg/L, Trichloroacetic Acid 0.100mg/L
“Chloroacetic acids are produced in drinking water as by-products of the reaction between chlorine and naturally occurring humic and fulvic acids. Concentrations reported overseas range up to 0.16mg/L and are typically about half the chloroform concentration. The chloroacetic acids are used commercially as reagents or intermediates in the preparation of a wide variety of chemicals. Monochloroacetic acid can be used as a pre-emergent herbicide, dichloroacetic acid as an ingredient in some pharmaceutical products, and trichloroacetic acid as a herbicide, soil sterilant and antiseptic.” Australian Drinking Water Guidelines – National Health and Medical Research Council
Ellendale (Tasmania) – Total HAA’s
11/7/19: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 122ug/L
14/8/19: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 136ug/L
12/9/19: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 176ug/L
7/11/19: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 114ug/L
6/12/19: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 120ug/L
13/2/20: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 125ug/L
16/7/20: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 162ug/L
23/7/20: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 142ug/L
29/7/20: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 122ug/L
6/8/20: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 98ug/L
13/8/20: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 117ug/L
19/8/20: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 155ug/L
10/9/20: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 168ug/L
8/10/20: Ellendale (Tasmania) Total Haloacetic Acid (HAA7): 194ug/L
Australian Guidelines Trichloroacetic Acid 0.100mg/L, Dichloroacetic Acid 0.100mg/L
“Chloroacetic acids are produced in drinking water as by-products of the reaction between chlorine and naturally occurring humic and fulvic acids. Concentrations reported overseas range up to 0.16mg/L and are typically about half the chloroform concentration. The chloroacetic acids are used commercially as reagents or intermediates in the preparation of a wide variety of chemicals. Monochloroacetic acid can be used as a pre-emergent herbicide, dichloroacetic acid as an ingredient in some pharmaceutical products, and trichloroacetic acid as a herbicide, soil sterilant and antiseptic.” Australian Drinking Water Guidelines – National Health and Medical Research Council…