2007/17 – Atitjere/Harts Range (Northern Territory) – Hardness

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Atitjere/Harts Range (Northern Territory) Hardness

2007/08: Atitjere Hardness 294mg/L

2008/09: Atitjere Hardness 294mg/L

2009/10: Atitjere Hardness 273mg/L

2010/11: Atitjere Hardness 279mg/L

2013/14: Atitjere Hardness 282mg/L

2015/16: Atitijere Hardness 281mg/L

2016/17: Atitijere Hardness 229mg/L


“To minimise undesirable build‑up of scale in hot water systems, total hardness (as calcium
carbonate) in drinking water should not exceed 200 mg/L.

Hard water requires more soap than soft water to obtain a lather. It can also cause scale to form on hot water pipes and fittings. Hardness is caused primarily by the presence of calcium and magnesium ions, although other cations such as strontium, iron, manganese and barium can also contribute.”