In nearby East Chicago, Indiana, the lead level in some tested soils reached 9.1% (91,000 ppm) [1] If this could be used to capture that lead, and separate it

In nearby East Chicago, Indiana, the lead level in some tested soils reached 9.1% (91,000 ppm) [1] If this could be used to capture that lead, and separate it out, you could mine the soil, while you treat a superfund site at the same time. [1] https://www.nrdc.org/stories/east-chicago-knowing-your-soil-toxic-only-half-battle https://www.nrdc.org/stories/east-chicago-knowing-your-soil-...