So I've had water samples analyzed for a half-dozen locations over the past few years, and this is the first one that doesn't completely make sense to me. It looks like otherwise soft water with (effectively) baking soda added? What sort of geology would produce groundwater like this? Or is there another explanation for the high levels of sodium and bicarbonate?
pH: 7.8
Calcium: 3 ppm
Magnesium: 0 ppm
Sodium: 128 ppm
Potassium: 0 ppm
Iron: 0 ppm
Bicarbonate: 319 ppm
Carbonate: 0.9 ppm
Sulfate: 12 ppm
Chloride: 22 ppm
Alkalinity (as CaCO3): 263 ppm
pH: 7.8
Calcium: 3 ppm
Magnesium: 0 ppm
Sodium: 128 ppm
Potassium: 0 ppm
Iron: 0 ppm
Bicarbonate: 319 ppm
Carbonate: 0.9 ppm
Sulfate: 12 ppm
Chloride: 22 ppm
Alkalinity (as CaCO3): 263 ppm