Mosaic remains committed to being a responsible neighbor as closure activities continue at the Plant City fertilizer facility. Site teams continue to safely manage water resources, secure the property, and complete closure activities in accordance with regulatory requirements.
Operations begin.
Mosaic acquires the facility through the CF acquisition.
Facility operations are idled.
Decision made to permanently close the site.
Plant decommissioning and area restoration activities begin.
Because production operations have ceased, the facility no longer consumes water for manufacturing purposes. Water management efforts are focused on treatment, compliance, and long-term environmental stewardship.
Multiple treatment systems are used to meet National Pollutant Discharge Elimination System (NPDES) requirements, including reverse osmosis technology which removes contaminants through membrane filtration.
Mosaic is also evaluating underground injection technology as an additional water management tool. In 2023, the company applied for a Class V Exploratory Underground Injection Control (UIC) Well Permit. This technology has been used in Florida for decades to safely manage nonhazardous wastewater and excess stormwater in deep geologic formations separated from drinking water sources by impermeable layers of rock and clay.
The permit application is for a Class V Exploratory UIC Well, allowing construction and testing only. Following successful testing, Mosaic may apply for a Class I permit for ongoing operation using nonhazardous fluids.
No. The injection zone is more than 4,000 feet underground and separated from drinking water aquifers by thick impermeable rock formations. Additional monitoring wells are required by regulators to verify protection of groundwater resources.
Continuous monitoring and dedicated dual-zone monitoring wells are designed to detect any migration outside the permitted injection zone and enable corrective action if needed.
The project utilizes an advanced electric drilling rig, or “E-Rig,” which is significantly quieter than conventional drilling equipment.
No. Extensive geologic and compatibility testing is required to ensure injected water remains isolated within deep, stable formations and does not create cavities or instability.
Surface water discharge remains part of Mosaic's strategy, but a UIC well provides additional resiliency during hurricanes, flooding events, and downstream capacity constraints.
Mosaic continues to support organizations and programs throughout the Plant City community.
In 2024, Mosaic donated $18,000 to United Food Bank to support food pantry operations and technology improvements that help the organization better serve local residents during times of need.
Through the Tampa Bay Lightning Goals for Food program, Mosaic has donated funding to area food banks since 2013, including $12,500 provided to United Food Bank during 2024.
Mosaic supports 4H and FFA projects at the Florida Strawberry Festival. Livestock purchased through these programs is donated to local food banks and nonprofits.
During Mosaic Cares Day 2025, employee volunteers packed hundreds of meal kits for seniors and students at United Food Bank's new facility.
