Injection well a viable way to deal with Piney Point waste, DEP says The Manatee County Commission approved going ahead with plans to drill a deep injection well at Piney Point. (Source: Manatee County) By ABC7 Staff | April 29, 2021 at 2:59 PM EDT - Updated April 29 at 6:26 PM SARASOTA, Fla. (WWSB) - As the cleanup of the troubled former Piney Point phosphate processing plant progresses, the problem remains -- What do you do with the millions of gallons of potentially toxic wastewater sitting in phosphogypsum stacks? The Manatee County Commission on April 22 approved hiring Youngquist Brothers Inc. of Fort Myers to drill an injection well, to pump the wastewater thousands of feet below ground. The contract states the well must be completed with 330 days and cost no more than $9.35 million.