The Unfiltered Loop, Part 3 of 5: The Maine Precedent
One state watched its farms die and did what no one else would. California is writing its own version — in pieces.
Fred Stone ran a dairy in Arundel, Maine. Multigenerational. The kind of farm that measures its life in decades and its wealth in healthy animals.
The state came to him with a deal. Free fertilizer. State-approved. Environmentally friendly. Truck it in, spread it on the fields, watch the grass grow. He did it for years.
Then the milk tested hot.
Per- and polyfluoroalkyl substances — the forever chemicals from Part 2 of this series — were in his cows, in his milk, in his blood. The "environmentally friendly" fertilizer had been poisoning his land the entire time. Stoneridge Farm shut down. A working dairy, killed not by markets or weather, but by a state program.
Maine's Department of Environmental Protection didn't merely allow sludge spreading. It distributed the sludge. It marketed the program as green. For decades, the state handed farmers toxin-laced waste and called it stewardship. This wasn't a loophole. It was policy.
Fred Stone wasn't alone. At Songbird Farm in Unity, Adam Nordell and Johanna Davis bought their dream farm in 2014 and discovered by 2021 that their soil, their water, and their own blood were loaded with PFAS — at levels that made national headlines. Farm after farm learned the hard way what the state had been slow to admit: the free fertilizer was the poison.
The Unfiltered Loop, Part 3 of 5: The Maine Precedent
The line
In May 2022, Maine did what no state had done. L.D. 1911 — carried by Rep. Bill Pluecker, himself a farmer — banned the land application of sewage sludge and sludge-derived compost. Governor Janet Mills signed it. First in the nation. Bipartisan.
And Maine didn't stop at the ban. L.D. 2013 set aside $60 million for the wreckage: income replacement for shuttered farmers, buybacks of poisoned farmland, medical monitoring for farmers and well owners, money for research into what can even grow on contaminated ground anymore.
Read that again. A state government looked at its own program, called it poison, shut it down, and paid for the damage. That is the precedent. Not the ban — the admission.
The stall
Maine drew the line. The rest of the country is still deciding whether to pick up the pen.
Other states are now weighing their own bans or tighter treatment rules. The EPA, meanwhile, keeps studying, promsing a risk assessment for two PFAS compounds, PFOA and PFOS, while thousands of others ride through treatment plants untouched. Kyla Bennett of Public Employees for Environmental Responsibility, who represents farmers suing the EPA to force regulation of PFAS in bio solids, put it plainly: farmers and ranchers and consumers are being injured now. Studying the fire while the house burns.
And there's the patchwork problem. PFAS doesn't respect state lines. A ban in Maine doesn't stop a single truck in California. In 2021, about 43 percent of all bio solids generated in the United States were land-applied. The machine is still running.
Idaho, right now
Maine is the past. Here's the present.
On September 29 — last week — the city of Twin Falls, Idaho, told residents that a drinking-water well at Magic Valley Regional Airport tested over the federal limit for PFAS: PFOA at 9.83 parts per trillion, PFOS at 5.35, against a limit of 4.0. Not the city's water — the airport's own well. They're installing filtration and chasing grants for a permanent fix.
Filtration. Read that word carefully, because it matters for where this series is going: a filter doesn't destroy PFAS. It catches it. The poison moves from the water into the filter media, and then the filter media becomes the problem — another waste stream, another thing to bury or burn. We are very good at moving PFAS around. We have no plan for ending it.
Thirty miles west sits Idaho's worst PFAS site: Mountain Home Air Force Base, poisoned by decades of firefighting foam. The base isn't cleaning its groundwater. It's abandoning it — a $32 million pipeline to pull water from the Snake River instead, plus a $100 million treatment plant due in 2027. Over $130 million spent". Over $126 million spent not to fix the poison, but to walk away from it.
And Idaho's biosolids program? The state requires management plans for land application and tests for exactly zero PFAS compounds. No testing requirement. No ban. No documented complaints — because nobody is looking. Maine banned the spread; Idaho doesn't even check what's in it. The cycle runs from flush to fork, and nobody is checking the cargo.
One honest footnote, because this series doesn't trade in claimed clusters: there is no documented cancer cluster under investigation in Idaho right now. Not one. The contamination is real and measured; the bodies haven't been counted yet. That's not reassurance. That's the lag — exposure first, epidemiology years later, if ever. Maine's farmers learned what that lag costs.
California's parallel war
California hasn't banned land application. But it is fighting the same enemy upstream — at the source, before PFAS ever reaches a treatment plant.
AB 1200 (2021) ripped PFAS out of plant-based food packaging starting January 2023. AB 1817 (2022) did the same to textiles and apparel starting January 2025, tightening the threshold to 50 parts per million in 2027 — your rain jacket, your couch, your kid's backpack. And AB 347 (2024) gave the whole apparatus teeth: the Department of Toxic Substances Control as lead enforcer, mandatory manufacturer registration, minimum $10,000 penalties per violation, full enforcement landing in 2030.
The logic is sound and it's the same logic Maine arrived at from the other direction: prevention is the only cure. Every pound of PFAS kept out of a product is a pound that never reaches wastewater, never rides sludge onto a field, never ends up in a farmer's blood.
What the laws can't do
Here is the blade every one of these laws carries: they all aim at tomorrow.
Maine's ban stops the next farm from dying. California's product bans choke off the next generation of contamination. Neither touches the sludge already in the ground. The acres already dosed. The wells already hot. There is no statute that un-spreads ten years of bio solids. No penalty that pulls PFAS back out of soil.
And note the irony California should sit with: the state writing the nation's toughest PFAS product bans still land-applies its own sludge. Over two million pounds of dry sludge land-applied every day, as Part 1 of this series documented. The left hand bans the chemical while the right hand spreads it.
Laws can stop the bleeding. They cannot heal the wound. For the ground that's already poisoned — the Stoneridge Farms of California that haven't been found yet — there is no legal remedy coming. There is only engineering: the complete destruction of the molecule itself.
Which is where this series goes next.
Part 4: Mineralization via solar-thermal pyrolysis — the engineering that doesn't manage PFAS, but ends it.
This is Part 3 of The Unfiltered Loop, a five-part investigation into PFAS, wastewater, and the sludge we spread on our food. Read the series from the beginning.
Take It to SMUD
Pyrolysis can destroy PFAS and turn waste into clean energy — but it needs public backing. Find your SMUD ward director and send a message of support.
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