More than 200m gallons of contaminated wastewater from a fertilizer plant in central Florida leaked into one of the state’s main underground sources of drinking water after a huge sinkhole opened up beneath a storage pond, a phosphate company said on Friday.
Mosaic, the world’s largest supplier of phosphate, said the hole opened up beneath a pile of waste material called a “gypsum stack”. The 215m gallon storage pond sat atop the waste mineral pile. The company said the sinkhole was about 45ft in diameter.
Mosaic said it was monitoring groundwater and had found no offsite impacts.