Hi Bruce, I pested the council and finally got a custom report, this is what the main concentrations are for northern Shoalhaven (Bamerang reservoir). Ca: 22, Mg: 3, Na: 10, HCO3: 55.8, CO3: 0.2, Cl:17, SO4: 19, pH: 7.8
These numbers are a bit dated now and probably should be updated but they...