Campaign Update  ·  March 2026  ·  Onondaga County Legislature

Onondaga County Just Created a PFAS Shield for Micron — and You're Holding the Bag

The March 3rd sewer district vote wasn't routine infrastructure. It was a transfer of environmental liability from a $455 billion corporation to the taxpayers of Onondaga County — and most people have no idea it happened.

On March 3rd, the Onondaga County Legislature voted 15-2 to create the Oak Orchard Industrial Sewer District — a new government entity whose entire purpose is to treat Micron's industrial wastewater before it enters the Oneida River. Sounds like routine infrastructure. It isn't.

Here's what was actually decided, layer by layer.

Nobody Knows What This Costs. They Voted Anyway.

The county already approved a $549 million expansion of the Oak Orchard Wastewater Treatment Plant in December — the largest infrastructure project in county history. The industrial treatment plant being built on top of that carries cost estimates ranging from $1 billion (County Executive McMahon's figure) to $2.6 billion (the county's own consultants). Final cost and financing have not been determined.

"We can't get this wrong. If the information is not what we projected, we're going to be in a whole lot of world of hurt."

That's not a critic. That's a legislator who voted yes.

They're Designing a Treatment Plant Without Knowing What It Has to Treat

Micron will use PFAS — "forever chemicals" — throughout its semiconductor manufacturing process at a scale that dwarfs typical industrial operations. But these aren't the PFOA and PFOS that appear on EPA's regulated list. The industry moved away from those compounds years ago. What Micron will discharge are next-generation PFAS compounds for which there are no treatment benchmarks and no enforceable discharge limits.

Micron has refused to fully disclose its chemical inventory to the county. Environmental engineers and community advocates testified publicly requesting that information. They were told to trust the process. Experts stated on the record that they had "inadequate information" about an "essential issue."

Micron Walks Away Clean. The County Doesn't.

This is the part nobody is saying loudly enough.

When Onondaga County operates this treatment plant as a public utility, the county becomes the permitted discharger to the Oneida River — not Micron. The county holds the SPDES permit. The county is the responsible party under federal and state environmental law.

If that effluent contains PFAS that proves harmful — and current science indicates all PFAS are toxic and persistent — the county gets sued. The county pays the EPA fines. The county's insurers absorb the exposure.

Not Micron.

Micron hands its wastewater to a government entity, which treats it as best it can with whatever technology exists at the time, discharges it under a government permit, and Micron walks. This isn't speculation. This is how industrial pretreatment and municipal discharge permits work.

Is This Really the Deal We're Making?

A $100 billion investment is real. The jobs are real. This campaign has never argued otherwise. But we should be honest about what was agreed to on March 3rd:

• A billion-dollar treatment system designed without knowing what it has to treat
• Discharge liability for unregulated forever chemicals transferred to county taxpayers
• A corporation worth $455 billion shielded behind a county sewer district
• The bill and the legal exposure handed to 480,000 people in Onondaga County

The former Water Environment Protection Commissioner said the public record left "major questions unanswered." She resigned. Democrats who voted yes said they did so only to "keep a seat at the table." One legislator voted yes — in his own words — not because he was satisfied with the answers, but because he wanted to "keep the project in the light."

That's not confidence. That's damage control in advance of the damage.

Onondaga County should not be Micron's environmental insurance policy.