PALMETTO – Two years after an intentional discharge of contaminated water stored in ponds atop the Piney Point phosphogypsum stacks, Manatee County utilities crews will begin disposing of the remaining wastewater in a new deepwater injection well.
Operations will begin next week, according to a March 28 statement from Manatee County Information Officer Bill Logan.
The well will hold Piney Point’s process water in a confined saltwater aquifer over a half mile below the surface under the Floridan aquifer, the state’s drinking water source. The phosphate process water, which will be drained from the reservoirs atop nearby phosphogypsum stacks, will be pre-treated before injection. Work on the pre-treatment facility has been underway since earlier this year, according to Logan.
Local environmental group ManaSota-88 opposes the deep injection well on several grounds, including that wells are subject to failure, and that leaks of the contaminated water – which is also slightly radioactive – could poison the state’s drinking water.
ManaSota-88 is among five environmental groups, including Sarasota-based Suncoast Waterkeeper, that sued the Florida Department of Environmental Protection (FDEP) and Piney Point owner HRK Holdings LLC on June 24, 2021 seeking to hold both responsible for negligence in managing the site. A pretrial conference is scheduled on July 12 in the U.S. District Court for the Middle District of Florida in Tampa; a trial is scheduled for Aug. 7.
In a separate lawsuit, HRK Holdings was sued by FDEP in Manatee County Circuit Court in 2021, a case that remains open with no hearings scheduled.
In 2021, FDEP authorized the emergency discharge of 215 million gallons of wastewater from the former phosphate plant into Tampa Bay to avoid a potential flood after a leak was discovered in the waste storage system. Surrounding homes and businesses were evacuated.
From March 30 to April 9, 2021, the wastewater poured into the bay, adding an estimated 186 metric tons of nitrogen, exceeding typical annual nitrogen loads in a matter of days, according to a report released by the Tampa Bay Estuary Program. The nitrogen worsened toxic cyanobacteria blooms that peaked in June, followed by a bloom of toxic red tide algae that caused fish kills, triggering the cleanup of more than 1,600 metric tons of dead fish, according to the report.
The well, drilled to a depth of 3,300 feet, was completed by Fort Myers-based Youngquist Brothers Inc., working with consultants ASRus of Tampa and Manatee County utilities staff. By working with FDEP, crews were able to expedite the well project.
“The cooperation and collaboration with the DEP have been key in getting this project fast-tracked,” Manatee County Utilities Director Evan Pilachowski said. “We are so pleased that we are to this point in the process already.”
“We are excited to write the final chapter of this Piney Point story,” Manatee County Commission Chair Kevin Van Ostenbridge said. “The teamwork involved in this important project – from the receiver to the DEP, to the consultants and our hard-working staff – have brought this to fruition.”
