Ward Labs Tap Water Analysis from Medford, MA February 2013
pH 8.8
Total Dissolved Solids (TDS) Est, ppm 107
Electrical Conductivity, mmho/cm 0.18
Cations / Anions, me/L 1.6 / 1.6 ppm
Sodium, Na 30 ppm
Potassium, K < 1 ppm
Calcium, Ca 4 ppm
Magnesium, Mg < 1 ppm
Total Hardness...