Plant City, Fla.-A phosphate processing plant in Plant City, Fla., that has been the subject of lawsuits from its neighbors and investigations from state regulators was in the process of being torn down last week. The main smokestack of the Coronet Industries phosphate plant was destroyed on Dec. 13, with its fall to the ground widely documented by television news programs. Nearby residents of the plant said air emissions and ground water contamination from it were causing abnormally high levels of cancer and other health problems. The plant ceased operations in March 2004.