This doesn't mean anything until there is more accountability for those responsible. Look at Flint, and now Oakland too it seems.
There are a lot of people that directly share some of the responsibility for failing to properly treat the Flint River water after the switch (and for switching in the first place).
But for instance, are the people that voted to start bankrupting the city in 1985 also responsible for the crisis?
How about the people that failed to replace their lead water supply lines after it became clear how dangerous lead can be?
And on and on.
But there are millions of lead service lines elsewhere in the US (the pipes from the street to the house).
Who's "responsible" for them?
It's not a question with an objective, simple and thus straightforward answer.