Mosaic wants to do it in Plant City, Mulberry and Bartow.
The Polk Regional Water Cooperative wants to do it near Lake Wales and north of Lakeland.
Kaiser Aluminum & Chemical once did it in Mulberry.
Although the details differ, all of the projects involve pumping wastewater thousands of feet underground where applicants and state regulators contend it poses the least threat to the natural environment and to surface and underground water supplies.
This idea was the topic of a well-attended public open house in Plant City Tuesday.
Here are some takeaways from the event.
The most immediate permit application involves Mosaic’s Plant City fertilizer plant and gypsum stack, which has been shut down.
The waste in this case is millions of gallons acidic wastewater that sits atop the stack.
If the Florida Department of Environmental Protection grants the permit, the plan is to send up to 4 million gallons a day of this waste underground for eight to 10 years.
After that, the top of the stack will be capped with an impermeable liner to prevent more rainwater from entering. But for decades after the stack is capped, Mosaic will be collecting seepage from the stack and treating and pumping it underground.
The reason it cannot be simply treated and discharged is because the treated wastewater would will still be too polluted to end up in sections of the Hillsborough River around Hillsborough River State Park or where Tampa gets its drinking water.
Although the initial reports said the waste will be pumped 8.,000 feet deep, it may be pumped to a shallower depth, depending on what geological tests show.
As with any of these wells, the main issue is to ensure that once the waste is pumped deep underground it stays there.
The permit also requires financial assurance of between $750,000 and $1.5 million in case something goes wrong and well needs to be repaired.
By the end of the year, permitting will be under way involving planned injection wells at Mosaic’s New Wales plant south of Mulberry and its Bartow plant. Those plants lie in the Alafia River and Peace River basins respectively.
Meanwhile the water cooperative is pursuing permits for injection wells to dispose of briny waste left over from the treatment of water being pumped from the Lower Floridan Aquifer, which has lower-quality water than the Upper Floridan Aquifer.
The Upper Floridan has been the traditional source of drinking water, but decades of overpumping to feed the growth machine has depleted it to the point that further withdrawals are unsustainable.
The main wells for the cooperative lie either in the headwaters of the Everglades or at the edge of the Green Swamp Area of Critcial State Concern.
But the idea of deep-well-injection is not new to Polk County.
The Kaiser plant, which opened in 1957, used acidic fluorine waste from the phosphate industry in its process.
That water was stored in ponds. but the pond water sometimes flowed downstream and began dissolving concrete bridge supports.
Bridge inspectors traced the problem back to Kaiser’s plant and concluded the plant needed to inject its waste underground to solve the problem, which was done.
The area around the plant was declared a brownfield site by the County Commission in 2012.
Author Archive: Tom Palmer
Soon The Pretense Of Recycling Will End In Polk, But Costs Will Go Up Anyway
Polk County has never been particularly enthusiastic about promoting recycling.
It was viewed primarily as an inconvenience tied to state recycling goals that seemed to have gone by the wayside after Chinese officials decided a few years ago that they would no longer be the world’s garbage can.
On Oct 1, the end of curbside recycling in unincorporated Polk County will become official. Some cities are expected to continue their service.
The word “Recycling” will no longer be part of the logo on county-funded garbage trucks.
It is nice to see truth in advertising.
If you have cardboard boxes and steel and aluminum cans you want to get rid of, you will be on your own.
Glass, which has its uses where markets exist, has not been in the mix lately.
Ditto for plastic, which is pretty much unrecyclable, despite propaganda from the bottlers and the chemical industry you may see on television and other media.
At a recent work session, county staffers discussed how they were going to try to inform the public about the end of recycling.
Probably what they ought to spend more time on is explaining why although the money-losing recycling program is going away, garbage rates that will appear on you tax bill will increase 63 percent and will increase annually from now on to keep up with inflation.
The public is already starting to notice, according to posts on social media.
The budget hearings later this year could be interesting.
Gypsum Road Study? What Gypsum Road Study?
A bid by the Mosaic fertilizer corporation during last year’s session of the Florida Legislature to direct the Florida Department of Transportation to study the feasibility of using a waste product called phosphogypsum for road—building projects easily passed and Gov. Ron DeSantis signed the bill.
The study was due to be completed by April 1 of this year, but so far there is no word on the study’s whereabouts.
The last we heard from an inquiry to a local legislator was that he is still waiting to hear from the folks at FDOT.
That’s not surprising.
This whole endeavor was more a political ploy than a practical engineering enterprise.
For one thing, it is not really a mystery whether the material, which is slightly radioactive and contains trace amounts of a number of toxic metals, was used to build a road.
It was used to build one on the outskirts of Fort Meade several years ago in a rural residential area next to an old phosphate pit.
Despite some of the talk about “radioactive roads” that might glow in the dark, University of Miami researchers examined whether the material used to build that road caused any problems and reportedly found none.
What this was really all about is the continual tug of war between environmental regulators and regulated industries over what is allowed and what is prohibited.
As things stand now, the U.S. Environmental Protection Agency does not allow wholesale use of phosphogypsum for roadbuilding, farming or any other use for which it is reportedly allowed to be used in other parts of the world.
The fertilizer industry would like to change the EPA ban so that they could be relieved of the very expensive obligation of monitoring these stacks for the rest of time.
The problem is that over the decades these waste stacks have grown to the size of small mountains across the region’s landscape to the point that even if someone approved its use, the amount that would be economical to use—at some point transportation costs to job sites makes it uneconomical—it would hardly make a noticeable dent in the size of these stacks.
That practical aspect was never addressed in the superficial staff analyses that accompanied the debate on the bill.
The bottom line is that it really does not matter whether FDOT conducted the study or what it concluded.
Those stacks are not going anywhere.
Tom Palmer
Winter Haven
Check out my blog at Conservation News – Sierra Club – Ancient Islands Group
New Parking Area Opens At Marshall Hampton Reserve

A new parking lot has opened off Thornhill Road for Polk County’s Marshall Hampton Reserve.
The new lot is south of the old lot, which is now closed, and just north of the Lake Lena Run Bridge.
The old parking area and some of the land adjacent to it appears to be for sale as it will eventually be cut off from the rest of the site by the construction of the western leg of the Central Polk Parkway.
The new parking area appears to be closer to the portion of the Panther Point Trail south of the borrow pit.
For more information on this or other Polk County Environmental Lands sites, go to www.polknature.com .
Warmest March In History? Not Around Here
Recent reports that last month on average was the warmest March on the planet ever were puzzling when you look at regional weather data in this part of Florida.
Well, maybe not. If it was really hot in some places, there have to be places that are cooler. That’s how averages work and it’s where we came in.
Generally the records ranged from the fourth warmest from stations at Sarasota-Bradenton and Punta Gorda, which have periods of record dating to 1911 and 1914 respectively, to 30th warmest at Brooksville, which has records dating to 1892.
Locally, the divergences also occurred.
Lakeland, where recordkeeping began in 1915, recorded its ninth warmest March.
Winter Haven, whose records date to 1941, had its 13th warmest March, tying a records from 1976 and 1990.
Bartow, where records began in 1892, had its 18th warmest March, tying records from 2002, 2016 and 2022/
Wauchula, which began recording temperature records in 1933, had its 11th warmest March, tying records in 1976 and 2015.
Archbold Biological Station near Lake Placid, whose records date to 1969, reported its fourth warmest March.
Peace River Flow Drops In Time For Proposal To Fix Eroded Bank
If you had thoughts of launching a kayak or canoe into the portion of the Peace River in Polk County, forget it.
Try farther downstream.
The latest USGS data at Bartow puts the river flow at about 20 percent of average for this time of year and about 50 percent of the amount of water needed to even float a boat downstream, providing you are prepared to portage around deadfalls.
The timing is opportune, though.
On Tuesday the Polk County Commission is scheduled to approve an agreement with Florida Fish and Wildlife Conservation Commission to repair some bank erosion in an area of the river south of Fort Meade.
From the project map, it seems to be close to Polk County’s Peace River Hammock site where the river bends picturesquely south of the confluence of Bowlegs Creek.
There were some major deadfalls in the river channel in that portion of the river last year. Maybe this project will deal with that problem, too.
State Approves Creek Ranch Purchase
Gov. Ron DeSantis and the Florida Cabinet quickly voted Tuesday to proceed with the purchase of 1,342-acre Creek Ranch near Lake Hatchineha in eastern Polk County.
The purchase price is $36.1 million. There was no word on when closing will occur to finalize the deal.
The ranch was the focus of a fight involving Sierra Club and others last year over a plan to develop the property into a residential-commercial project that would put urban growth deeper into what has traditionally been a rural area of Polk.
The property’s development would have interrupted a lengthy wildlife corridor stretching from the Everglades to near the Green Swamp where Florida panther and Florida black bear have been documented.
The lack of intense development there will also aid in maintaining some of the dark sky aspect of that area.
Once the state acquires the property, it will be managed by the Florida Fish and Wildlife Conservation Commission as a wildlife management area. Agency officials say the plan to use the buildings on the grounds for staff housing and equipment storage.
There are also plans to organize youth conservation camp activities.