Hmm, surprise. Chicago published this stuff for 2015 (quarters 1, 2 and 3). My old numbers were Ca 34, Mg 12, Na 12, Cl 21, SO4: 27 with a bicarb number of 138ppm and a pH of 6.6. The site published new data which shows Ca 34, Mg 12, Na 8, Cl 14 and SO4 of 26, Bicarb is not on the report but...