Mosaic plant sinkhole dumps 215 million gallons of reprocessed water into Floridan Aquifer (w/video)
It drained millions of gallons of acidic water laced with sulfate and sodium from a pool atop a 120-foot gypsum stack. An unknown amount of gypsum, a fertilizer byproduct with low levels of radiation, also fell into the sinkhole, which is believed be at least 300 feet deep.

zie verder:
http://www.tampabay.com/news/environment/water/mosaic-plant-sinkhole-dumps-215-million-gallons-of-reprocessed-water-into/2293845


Goverment knew about Florida sinkhole that dumped radioactive material into ground water; did not notify public
zie verder:
http://wate.com/2016/09/17/goverment-knew-about-florida-sinkhole-that-dumped-radioactive-material-into-ground-water-did-not-notify-public/




Concerns Grow Over Toxic Florida Sinkhole


Sinkhole on toxic pond has neighbors fuming








Sinkholes of Polk County, Florida , 2008
http://fcit.usf.edu/florida/maps/pages/11100/f11153/f11153z.htm