Posting my Ward Labs test for Baltimore, MD:
Baltimore, MD
Municipal Water, Near JHU Homewood
5/26/2011
Analysis by Ward Laboratories
7.8 pH
159 Total Dissolved Solids (TDS) Est, ppm
0.26 Electrical Conductivity, mmho/cm
2.2 / 2.1 Cations / Anions, me/L
Ppm
18 Sodium, Na
2 Potassium, K...