PFAS in Biosolids: The Fertilizer Question Farmers Can’t Ignore

The debate over biosolids is back in the lane, and this time the word hanging over the gate is PFAS. A Natural News report says a proposed EPA regulation, with comments due Sept. 4, 2026, would allow sewage sludge used as fertilizer in agriculture and land management to contain per- and polyfluoroalkyl substances, the so-called forever chemicals.

Biosolids have long sat in a complicated corner of farm nutrient management. On one hand, they recycle organic matter and nutrients that would otherwise become waste. On the other, sewage systems collect more than plant food. Industrial residues, household chemicals, pharmaceuticals, and persistent contaminants can all hitch a ride.

PFAS raises the stakes because these compounds do not break down easily. If they accumulate in soil, water, crops, livestock, or milk, the farmer may be the one left answering hard questions from buyers, regulators, lenders, and neighbors. That is a rough deal if the contamination came through a permitted product marketed as beneficial reuse.

For producers, this is a moment to tighten due diligence. Ask for testing records, not just nutrient analysis. Know the source of any biosolids. Check state rules, buyer requirements, insurance exclusions, and food company policies. If you sell milk, meat, vegetables, or grain into sensitive supply chains, one low-cost fertility option may carry a long tail.

None of this means every organic amendment is suspect. Compost, manure, digestate, and biosolids all have roles when managed carefully. But PFAS reminds us that soil is not a dump with a crop on top — it is the farm’s bank account, inheritance, and reputation rolled into one. Guard it like the good ground it is.