[laurensr]

In the sixties, hexavelent chromium was used as a rust inhibitor in cooling towers in a Hinkley PG&E compressor station. It caused ground water contamination affecting the health of many.

https://en.wikipedia.org/wiki/Hinkley_groundwater_contaminat...

[whalesalad]

https://en.wikipedia.org/wiki/Erin_Brockovich