Geranium (Queensland) – Selenium
7/2/22: Geranium Price Street Selenium 0.0033mg/L
9/8/22: Geranium Price Street Selenium 0.0031mg/L
12/2/25: Geranium Price Street Selenium 0.0044mg/L (max). 2024/25 av. 0.0032mg/L
Based on health considerations, the concentration of selenium in drinking water should not exceed 0.004 mg/L (2011-2025 guideline 0.01mg/L). “General description Selenium (Se) and selenium salts are widespread in the environment. Selenium is released from natural and human-made sources (such as the burning of coal). Selenium is also a by-product of the processing of sulfide ores, chiefly in the copper refining industry. The major use of selenium is in the manufacture of electronic components. It is used in several other industries, and selenium compounds are used in some insecticides, in hair shampoos as an antidandruff agent, and as a nutritional feed additive for poultry and livestock. Selenium copper alloys have also been identified as a potential replacement for lead copper alloys in plumbing products. Further information on lead replacements in plumbing products (such as selenium copper alloys) is available in Information Sheet 4.1 – Metal and metalloid chemicals leaching from plumbing products. Selenium concentrations in drinking water source waters are generally very low and depend on local geochemistry, climatic conditions (e.g. drought), pH and the presence of iron salts. Selenium in water is mainly present as inorganic compounds, predominantly selenate. Weathering of rocks and soil may result in low levels of selenium in water, which may be taken up by plants (SLR 2022). Food is the major source of intake for Australians. Cereal and grain products contribute most to intake, while fish and liver contain the highest selenium concentrations.” ADWG 2025
Geranium (South Australia) Hardness
August 2 2016: Geranium (South Australia) – Calcium Hardness 260mg/L
October 25 2016: Geranium (South Australia) – Calcium Hardness 250mg/L
February 14 2017: Geranium (South Australia) – Calcium Hardness 242mg/L
May 9 2017: Geranium (South Australia) – Calcium Hardness 244mg/L
2018/19: Geranium (South Australia) Hardness 267mg/L (max), 257.5mg/L (av)
2018/19: Geranium (South Australia) Hardness as CaCO3 595mg/L (max), 578.25mg/L (av)
2019/20: Geranium (South Australia) Total Hardness as CaCO3 580mg/L (max), 576.25mg/L av.
2019/20: Geranium (South Australia) Calcium Hardness as CaCO3 257mg/L (max), 254.75mg/L av.
2022/23: Geranium (South Australia) Total Hardness as CaCO3 270mg/L (max), 261.75mg/L (av.)
GUIDELINE
“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.”
Australian Drinking Water Guidelines 2011
Geranium (South Australia) – Chloride
August 2 2016 Geranium (South Australia) Chloride 472mg/L
October 25 2016 Geranium (South Australia) Chloride 476mg/L
February 14 2017 Geranium (South Australia) Chloride 472mg/L
May 9 2017 Geranium (South Australia) Chloride 483mg/L
2018/19: Geranium (South Australia) Chloride 489mg/L (max), 483.75mg/L (av.)
12/5/20: Geranium (South Australia) Chloride 501mg/L (max). 2019/20 av. 489.25mg/L av.
2022/23: Geranium (South Australia) Chloride 497mg/L (max). 2019/20 av. 478.5mg/L av.
“Chloride is present in natural waters from the dissolution of salt deposits, and contamination from effluent disposal. Sodium chloride is widely used in the production of industrial chemicals such as caustic soda, chlorine, and sodium chlorite and hypochlorite. Potassium chloride is used in the production of fertilisers.
The taste threshold of chloride in water is dependent on the associated cation but is in the range 200–300 mg/L. The chloride content of water can affect corrosion of pipes and fittings. It can also affect the solubility of metal ions.
In surface water, the concentration of chloride is usually less than 100 mg/L and frequently below 10 mg/L. Groundwater can have higher concentrations, particularly if there is salt water intrusion.
Based on aesthetic considerations, the chloride concentration in drinking water should not exceed 250 mg/L.
No health-based guideline value is proposed for chloride.” 2011 Australian Drinking Water Guidelines
Geranium (South Australia) – Sodium
2/8/16 Geranium Sodium 299mg/L
25/10/16 Geranium Sodium 322mg/L
14/2/17 Geranium Sodium 315mg/L
9/5/17 Geranium Sodium 332mg/L
2018/19: Geranium (South Australia). Sodium 355mg/L (max), 331mg/L (av)
12/5/20: Geranium (South Australia) Sodium 331mg/L (max), 327.25mg/L (av.)
2022/23: Geranium (South Australia) Sodium 331mg/L (max), 321.75mg/L (av.)
2024/25: Geranium (South Australia) Sodium 365mg/L (max), 336.25mg/L (av.)
“Based on aesthetic considerations (taste), the concentration of sodium in drinking water
should not exceed 180 mg/L….The sodium ion is widespread in water due to the high solubility of sodium salts and the abundance of mineral deposits. Near coastal areas, windborne sea spray can make an important contribution either by fallout onto land surfaces where it can drain to drinking water sources, or from washout by rain. Apart from saline intrusion and natural contamination, water treatment chemicals, domestic water softeners and
sewage effluent can contribute to the sodium content of drinking water.” ADWG 2011
Geranium – South Australia – Total Dissolved Solids
2018/19 Geranium (South Australia) Total Dissolved Solids 1500mg/L (max), 1425mg/L (av)
2019/20: Geranium (South Australia) Total Dissolved Solids (by EC) 1510mg/L (max), 1457.5mg/L av.
2022/23: Geranium (South Australia) Total Dissolved Solids (by EC) 1450mg/L (max), 1442.5mg/L av.
GUIDELINE
“No specific health guideline value is provided for total dissolved solids (TDS), as there are no
health effects directly attributable to TDS. However for good palatability total dissolved solids
in drinking water should not exceed 600 mg/L.
Total dissolved solids (TDS) consist of inorganic salts and small amounts of organic matter that are dissolved in water. Clay particles, colloidal iron and manganese oxides and silica, fine enough to pass through a 0.45 micron filter membrane can also contribute to total dissolved solids.
Total dissolved solids comprise: sodium, potassium, calcium, magnesium, chloride, sulfate, bicarbonate, carbonate, silica, organic matter, fluoride, iron, manganese, nitrate, nitrite and phosphates…” Australian Drinking Water Guidelines 2011