By Phil Tucker
The last five years have tested Maine’s wastewater utilities in ways few could have imagined. What began as a steady progression of technical, regulatory, and operational challenges was abruptly transformed into a period of near-constant crisis management, nowhere more visible than in the handling of biosolids. For decades, biosolids management in Maine reflected a balance of environmental protection, beneficial reuse, and practical economics. Utilities invested in stabilization, monitoring, and land application programs that were rooted in science and oversight. That balance began to unravel as concerns about per- and polyfluoroalkyl substances (PFAS) emerged nationally and then settled locally, accelerating at a pace that left little time for deliberation or a smooth transition.
The enactment of LD 1911 in 2022 marked a turning point. While motivated by legitimate public health concerns, the law fundamentally altered biosolids management almost overnight. Composting operations shut down. Land application programs were suspended or eliminated. Longstanding outlets disappeared, replaced by uncertainty, rising costs, and emergency disposal strategies. Utilities that had operated responsibly for years suddenly found themselves portrayed as contributors to a problem they did not create and could not control. For many facilities, biosolids hauling costs doubled or tripled within months. Backhauls vanished. Transportation distances increased dramatically, driving up fuel use and greenhouse gas emissions at the same time the industry was being asked to reduce its climate footprint. Capital planning assumptions that had been stable for decades were rendered obsolete in a single legislative session. And yet, biosolids were only one front in a much larger battle.
Throughout this same five-year period, Maine wastewater utilities have continued to shoulder the weight of aging infrastructure. Collection systems installed in the early 1900’s are reaching the end of their useful lives, requiring reinvestment on a scale that far exceeds ratepayer tolerance in many communities. Treatment plants face mounting capital needs for redundancy, resiliency, and modernization, often before previous upgrades have been fully paid off. At the same time, nutrient limits have tightened. Phosphorus and nitrogen reduction requirements, while environmentally justified, demand advanced treatment processes, additional energy, and highly skilled operators. Each new limit brings with it new equipment, new operational complexity, and new financial obligations.
Additionally, workforce challenges have added to the pressure. Utilities across Maine struggle to recruit and retain licensed operators, maintenance staff, and engineers. Retirements accelerated during the pandemic. Fewer young professionals are entering the field. Those who remain are asked to manage increasingly complex systems under heightened public scrutiny, often with limited institutional support. In small and mid-sized utilities especially, the loss of a single experienced operator can jeopardize compliance and continuity.
Energy costs have risen sharply. Chemical supply chains have proven fragile. Extreme weather events including flooding, storm surges and power outages, have tested system resilience and emergency preparedness across the state. Climate change is no longer a future consideration; it is our current reality.
Against this backdrop, the biosolids crisis has felt less like an isolated issue and more like a breaking point. What has been most challenging for many utilities is not simply the loss of biosolids outlets, but the erosion of trust and predictability. Planning horizons shortened. Investments made in good faith under one regulatory framework became stranded under another. Utilities were forced into reactive decision-making, the outcome has been securing short-term disposal solutions, but at long-term costs, while still meeting every other regulatory and service obligation placed upon them.
Yet, even in this crucible, Maine’s wastewater sector has endured. Operators continued to show up. Facilities remained in compliance. Utilities absorbed costs where possible and explained difficult rate increases where they could not. Professionals collaborated across organizations, shared information, and sought pathways forward. Many tried to engage constructively with regulators, legislators, and communities, advocating not for a return to the past, but for a future grounded in science, risk management, and shared responsibility. It is important to acknowledge a central truth that has sometimes been lost in public conversation: wastewater utilities did not manufacture PFAS, market PFAS-containing products, or control their use. They are, like the communities they serve, downstream recipients of a global chemical legacy. Asking utilities alone to absorb the consequences, financially, operationally, and reputationally, has strained a system already under pressure.
As Maine looks ahead, the question is not whether biosolids management must evolve. It must. The question is whether that evolution can be guided by sound data, flexibility, and collaboration, rather than fear and absolutes. Other challenges including aging infrastructure, nutrient limits, workforce shortages, and climate resilience, have not paused while biosolids pathways were closed. They continue to demand attention, funding, and human capacity. The past five years have shown that wastewater utilities are resilient, adaptive, and deeply committed to environmental protection and public health. They have also shown that resilience has limits.
If there is a lesson to be drawn, it is that sustainable and effective environmental policy must consider cumulative impacts. Biosolids decisions cannot be made in isolation from infrastructure finance, workforce realities, climate goals, and community affordability. These kinds of issues must be approached with holistic problem-solving methods. The strength of Maine’s water sector depends not on eliminating risk entirely, which is an impossible task, but on managing it wisely, transparently, and together.
The trials of the last five years have been profound. So too has been the determination of the water professionals who navigate them every day. The future of biosolids in Maine remains uncertain, but the dedication of those protecting water quality is not.
