Consider that most buildings built in the 1980s or earlier have at least some lead pipes in the building plumbing, not to mention the mains. In the Bay Area, ho

Consider that most buildings built in the 1980s or earlier have at least some lead pipes in the building plumbing, not to mention the mains. In the Bay Area, how many of us live in buildings built in the 80s or earlier? With the way landlords act around here, I would be very much not surprised to see high lead levels coming out of faucets. From 10 minutes of research it looks like SF is lead-free for water mains, but this talks about how fixtures even up until 2010 potentially contain unsafe levels of lead: http://www.bayarealeaddetectors.com/blog/ http://www.bayarealeaddetectors.com/blog/ And this is just one contaminant: http://www.livescience.com/56210-what-is-chromium-6-in-tap-water.html http://www.livescience.com/56210-what-is-chromium-6-in-tap-w... https://www.epa.gov/ccl/types-drinking-water-contaminants https://www.epa.gov/ccl/types-drinking-water-contaminants // https://www.wqa.org/learn-about-water/common-contaminants https://www.wqa.org/learn-about-water/common-contaminants While I personally don't buy bottled water (lucky enough to have RO filtration at home and at work), I don't really blame those who do out of fear. Unless you get what's coming out of the actual taps you use tested regularly, you don't actually know what you're drinking.