I read about that article Charlie, it was a single incident and after a few hours, they cleaned it up and tested the water indicating it was once again safe to drink. All evidence on normal water tests I’ve found shows that Chengdu water is not only safe, but beyond minimal standards for drinking and actually perfectly fine – the reason I looked into this and questioned it at all is because my friend, a foreigner, was pouring tap water from my place into a water bottle to drink rather than bother getting a new bottle at my place…and I was like, “don’t you want to boil it first?” – he told me the thing about the german company during the quake who tested the water and found no issues several times, in disbelief..and told me to actually look it up and realize that the “word of mouth” regarding tap water here is nonsense.