Because nobody (at least in the US and China) takes heavy metals in groundwater as a serious problem. If they did, that would cost much more than Fukushima. It

Because nobody (at least in the US and China) takes heavy metals in groundwater as a serious problem. If they did, that would cost much more than Fukushima. It eventually will. https://insideclimatenews.org/news/04032019/coal-ash-groundwater-contamination-toxic-arsenic-memphis-texas-eip/ https://insideclimatenews.org/news/04032019/coal-ash-groundw...