Thank you Keith. I did not know about the Johnson Controls facility. It should also be noted than Doe Run, even after closure of the "from the mine" smelter continued to operate a recycling facility
http://www.doerun.com/what-we-do/metal-production I had also forgotten (uh...slipped my lead contaminated mind
) of the possible association with ALS, which I'm embarrassed to say is old news
https://www.ncbi.nlm.nih.gov/pubmed/16909025http://kbia.org/post/end-lead-laced-era-polluting-smelter-close-after-120-years#stream/0
