Good news: https://www.nytimes.com/2018/07/22/opinion/flint-lead-poisoning-water.html
Children were unwillingly and unknowingly taking lead, a known dangerous substance. I’d call that poisoning. It may have fortunately done no serious damage, but it is still poisoning.
The article gives good reasons for not attaching that label.
Here’s a story from just a couple days ago: https://www.nj.com/essex/index.ssf/2018/06/60m_to_remove_lead_from_newarks_water.html
Lots of us are unaware of what’s in our water. Your local testing results should be available if you’re interested. It seems a tad overboard to say we’re being poisoned.