In my last message, I wrote: >http://www.wssc.dst.md.us/info/ccr.html > >I live in the Mixed/Blended section on the map. After taking a look at the numbers I'm more familiar with, it looks like I've got mostly Potomac water, not Patuxent. The pH out of my tap is consistently 7.5, not 8.5, and the hardness is generally about 7 degrees Tetra, not 3. Alysoun McLaughlin Wheaton, Maryland