Denver water couldn't force the mine to continue cleanup of the molybdenum (because they're bankrupt) and instead raised the tolerable levels of molybdenum in Denver water. The same thing happened in 2017, 2010 and I'm certain before that. And then we have things like this
https://www.cpr.org/2025/06/04/free-private-well-testing-ote...
Colorado has some serious issues with mine runoff and water contamination.