> When my company's office was located on Hillview Avenue in 2010, literally around the corner from Hewlett-Packard, I heard gossip about how the tech giant had polluted the area back in the day. Once a quick search confirmed that there was some truth to the rumor, it made me a bit nervous about drinking water straight from the tap at the office, so I bought a Brita filter, and didn't think much of it.

Correct me if I'm wrong, but wouldn't a Brita filter be completely useless for this kind of contamination?