Popanyinning – Western Australia – Iron
2013/14 Popanyinning (Western Australia) Iron 0.44mg/L (max), 0.27mg/L (mean)
2017/18 Popanyinning (Western Australia) Iron 0.3mg/L (max), 0.19mg/L (mean)
2019/20: Popanyinning (Western Australia) Iron 0.6mg/L (max), 0.34mg/L (mean)
Based on aesthetic considerations (precipitation of iron from solution and taste),
the concentration of iron in drinking water should not exceed 0.3 mg/L.
No health-based guideline value has been set for iron.
Iron has a taste threshold of about 0.3 mg/L in water, and becomes objectionable above 3 mg/L. High iron concentrations give water an undesirable rust-brown appearance and can cause staining of laundry and plumbing fittings, fouling of ion-exchange softeners, and blockages in irrigation systems. Growths of iron bacteria, which concentrate iron, may cause taste and odour problems and lead to pipe restrictions, blockages and corrosion. ADWG 2011