Was given these numbers for Toowoomba water coming from the Mt Kynoch treatment plant.
The median for 2012-13 data (results generally deviate little from the medium in these data)
Calcium - 12mg/L
Magnesium - 10.5mg/L
Bicarbonate - 58 mg/L
Sulphate - 1.3 mg/L
Sodium - 11.5 mg/L
Chloride -...