Evanston Park (South Australia) – Mercury
 
 

19/12/22: Evanston Park (South Australia) Mercury – Total 0.0014mg/L

Mercury: Australian Drinking Water  Guideline 0.001mg/L

Mercury, if it enters the ecosystem can transform into the more toxic methylmercury where it can bioaccumulate. Methylmercury is highly toxic to human embryos, fetuses, infants and children. Mercury has numerous sources including old gold mines, where mercury was used in gold recovery process. It has been estimated that 950 tonnes of
mercury was deposited into Victorian soil, rivers and streams during the various gold rushes.
https://ntn.org.au/wp-content/uploads/2010/05/mercury_brief20101.pdf

Evanston Park (South Australia) – Bromodichloromethane

2018/19: Evanston Park (South Australia) 68ug/L (max), 56.8ug/L (av.)

2022/23: Evanston Park (South Australia) 68ug/L (max), 51.9ug/L (av.)

WHO Guideline level BDCM: 60ug/L (Australian Guideline for BDCM is included in the combined total of BDCM, Chloroform, Dibromochloromethane and Bromoform. THM guideline is 250ug/L)

“Carcinogenicity : Bromodichloromethane is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals.
Cancer Studies in Experimental Animals: Oral exposure to bromodichloromethane caused tumors at several different tissue sites in mice and rats. Administration of bromodichloromethane by stomach tube caused benign and malignant kidney tumors (tubular-cell adenoma and adenocarcinoma) in male mice and in rats of both sexes, benign and
malignant liver tumors (hepatocellular adenoma and carcinoma) in female mice, and benign and malignant colon tumors (adenomatous polyps and adenocarcinoma) in rats of both sexes (NTP 1987, ATSDR 1989, IARC 1991, 1999).

Since bromodichloromethane was listed in the Sixth Annual Report on Carcinogens, additional studies in rats have been identified. Administration of bromodichloromethane in the drinking water increased the combined incidence of benign and malignant liver tumors (hepatocellular adenoma or carcinoma) in males (George et al. 2002) and caused benign liver tumors (hepatocellular adenoma) in females (Tumasonis et al. 1987).

Cancer Studies in Humans
The data available from epidemiological studies are inadequate to evaluate the relationship between human cancer and exposure specifically to bromodichloromethane. Several epidemiological studies indicated a possible association between ingestion of chlorinated drinking water (which typically contains bromodichloromethane) and increased risk of
cancer in humans, but these studies could not provide information on whether any observed effects were due to bromodichloromethane or to one or more of the hundreds of other disinfection by-products also present in chlorinated water (ATSDR 1989).” (1)

Evanston Park (South Australia) – Total Haloacetic Acid’s

24/9/18: Evanston Park (South Australia) Total Haloacetic Acid (HAA7) 0.111mg/L

25/3/19: Evanston Park (South Australia) Total Haloacetic Acid (HAA7) 0.110mg/L

2022/23: Evanston Park (South Australia) Total Haloacetic Acid (HAA7) 0.109mg/L (max), 0.1005mg/L (av.)

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…

Evanston Park – South Australia – Temperature

November 17 2016: Evanston Park (South Australia) Urlwin Ave – Temperature 21C

December 1 2016: Evanston Park (South Australia) Urlwin Ave – Temperature 22C

December 8 2016: Evanston Park (South Australia) Urlwin Ave – Temperature 20C

December 15 2016: Evanston Park (South Australia) Urlwin Ave – Temperature 21C

December 22 2016: Evanston Park (South Australia) Urlwin Ave – Temperature 22C

December 28 2016: Evanston Park (South Australia) Urlwin Ave – Temperature 25C

January 5 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 26C

January 12 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 24C

January 19 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 28C

January 25 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 26C

February 2 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 24C

February 8 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 25C

February 13 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 26C

February 23 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 23C

March 2 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 24C

March 9 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 23C

March 14 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 22C

March 23 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 21C

GUIDELINE

“No guideline is set due to the impracticality of controlling water temperature.
Drinking water temperatures above 20°C may result in an increase in the number of
complaints.

Temperature is primarily an aesthetic criterion for drinking water. Generally, cool water is more palatable than warm or cold water. In general, consumers will react to a change in water temperature. Complaints are most frequent when the temperature suddenly increases.

The turbidity and colour of filtered water may be indirectly affected by temperature, as low water temperatures tend to decrease the efficiency of water treatment processes by, for instance, affecting floc formation rates and sedimentation efficiency.

Chemical reaction rates increase with temperature, and this can lead to greater corrosion of pipes and fittings in closed systems. Scale formation in hard waters will also be greater at higher temperatures…

Water temperatures in major Australian reticulated supplies range from 10°C to 30°C. In some long, above-ground pipelines, water temperatures up to 45°C may be experienced…

The effectiveness of chlorine as a disinfectant is influenced by the temperature of the water being dosed. Generally higher temperatures result in more effective disinfection at a particular chlorine dose, but this may be counterbalanced by a more rapid loss of chlorine to the atmosphere (AWWA 1990).

Chlorine reacts with organic matter in water to produce undesirable chlorinated organic by-products, and higher temperatures increase the rate of these reactions.

Temperature can directly affect the growth and survival of microorganisms. In general the survival time of infectious bacteria and parasites is reduced as the temperature of the contaminated water increases.

Australian Drinking Water Guidelines 2011

2016/23 – Evanston Park (South Australia) – Mercury, Bromodichloromethane, Total Haloacetic Acids, Temperature

Evanston Park (South Australia) – Mercury

19/12/22: Evanston Park (South Australia) Mercury – Total 0.0014mg/L

Mercury: Australian Drinking Water  Guideline 0.001mg/L

Mercury, if it enters the ecosystem can transform into the more toxic methylmercury where it can bioaccumulate. Methylmercury is highly toxic to human embryos, fetuses, infants and children. Mercury has numerous sources including old gold mines, where mercury was used in gold recovery process. It has been estimated that 950 tonnes of
mercury was deposited into Victorian soil, rivers and streams during the various gold rushes.
https://ntn.org.au/wp-content/uploads/2010/05/mercury_brief20101.pdf

Evanston Park (South Australia) – Bromodichloromethane

2018/19: Evanston Park (South Australia) 68ug/L (max), 56.8ug/L (av.)

2022/23: Evanston Park (South Australia) 68ug/L (max), 51.9ug/L (av.)

WHO Guideline level BDCM: 60ug/L (Australian Guideline for BDCM is included in the combined total of BDCM, Chloroform, Dibromochloromethane and Bromoform. THM guideline is 250ug/L)

“Carcinogenicity : Bromodichloromethane is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals.
Cancer Studies in Experimental Animals: Oral exposure to bromodichloromethane caused tumors at several different tissue sites in mice and rats. Administration of bromodichloromethane by stomach tube caused benign and malignant kidney tumors (tubular-cell adenoma and adenocarcinoma) in male mice and in rats of both sexes, benign and
malignant liver tumors (hepatocellular adenoma and carcinoma) in female mice, and benign and malignant colon tumors (adenomatous polyps and adenocarcinoma) in rats of both sexes (NTP 1987, ATSDR 1989, IARC 1991, 1999).

Since bromodichloromethane was listed in the Sixth Annual Report on Carcinogens, additional studies in rats have been identified. Administration of bromodichloromethane in the drinking water increased the combined incidence of benign and malignant liver tumors (hepatocellular adenoma or carcinoma) in males (George et al. 2002) and caused benign liver tumors (hepatocellular adenoma) in females (Tumasonis et al. 1987).

Cancer Studies in Humans
The data available from epidemiological studies are inadequate to evaluate the relationship between human cancer and exposure specifically to bromodichloromethane. Several epidemiological studies indicated a possible association between ingestion of chlorinated drinking water (which typically contains bromodichloromethane) and increased risk of
cancer in humans, but these studies could not provide information on whether any observed effects were due to bromodichloromethane or to one or more of the hundreds of other disinfection by-products also present in chlorinated water (ATSDR 1989).” (1)

Evanston Park (South Australia) – Total Haloacetic Acid’s

24/9/18: Evanston Park (South Australia) Total Haloacetic Acid (HAA7) 0.111mg/L

25/3/19: Evanston Park (South Australia) Total Haloacetic Acid (HAA7) 0.110mg/L

2022/23: Evanston Park (South Australia) Total Haloacetic Acid (HAA7) 0.109mg/L (max), 0.1005mg/L (av.)

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…

Evanston Park – South Australia – Temperature

November 17 2016: Evanston Park (South Australia) Urlwin Ave – Temperature 21C

December 1 2016: Evanston Park (South Australia) Urlwin Ave – Temperature 22C

December 8 2016: Evanston Park (South Australia) Urlwin Ave – Temperature 20C

December 15 2016: Evanston Park (South Australia) Urlwin Ave – Temperature 21C

December 22 2016: Evanston Park (South Australia) Urlwin Ave – Temperature 22C

December 28 2016: Evanston Park (South Australia) Urlwin Ave – Temperature 25C

January 5 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 26C

January 12 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 24C

January 19 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 28C

January 25 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 26C

February 2 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 24C

February 8 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 25C

February 13 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 26C

February 23 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 23C

March 2 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 24C

March 9 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 23C

March 14 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 22C

March 23 2017: Evanston Park (South Australia) Urlwin Ave – Temperature 21C

GUIDELINE

“No guideline is set due to the impracticality of controlling water temperature.
Drinking water temperatures above 20°C may result in an increase in the number of
complaints.

Temperature is primarily an aesthetic criterion for drinking water. Generally, cool water is more palatable than warm or cold water. In general, consumers will react to a change in water temperature. Complaints are most frequent when the temperature suddenly increases.

The turbidity and colour of filtered water may be indirectly affected by temperature, as low water temperatures tend to decrease the efficiency of water treatment processes by, for instance, affecting floc formation rates and sedimentation efficiency.

Chemical reaction rates increase with temperature, and this can lead to greater corrosion of pipes and fittings in closed systems. Scale formation in hard waters will also be greater at higher temperatures…

Water temperatures in major Australian reticulated supplies range from 10°C to 30°C. In some long, above-ground pipelines, water temperatures up to 45°C may be experienced…

The effectiveness of chlorine as a disinfectant is influenced by the temperature of the water being dosed. Generally higher temperatures result in more effective disinfection at a particular chlorine dose, but this may be counterbalanced by a more rapid loss of chlorine to the atmosphere (AWWA 1990).

Chlorine reacts with organic matter in water to produce undesirable chlorinated organic by-products, and higher temperatures increase the rate of these reactions.

Temperature can directly affect the growth and survival of microorganisms. In general the survival time of infectious bacteria and parasites is reduced as the temperature of the contaminated water increases.

Australian Drinking Water Guidelines 2011