Idaho fish have a similar problem. The culprit is likely the same — Nevada gold mines-
Below is an editorial from the Salt Lake Tribune on the rather shocking new findings about levels of mercury in Utah fish. In some cases the fish have so much mercury it isn’t safe to eat a single fish.
There are many sources of mercury, but for these two states one source stands out — the numerous gold pit mines that have popped up in Nevada — many of which put out far more of toxic metal (once it is converted to methymercury) than an entire handful of coal-fired power plants.
I think it is time for a lawsuit demanding damages.
Mercury testing yields advisories. Salt Lake Tribune Editorial