What They Were Supposed to Do — and Didn’t

The Plant, the Permit, and the Promises

Granite City Slag LLC operates a blast furnace slag handling and processing facility at 20th Street and Edwardsville Road in Granite City, Illinois, smack in the middle of Madison County. Raw slag comes in, gets crushed, screened, and conveyed to storage piles. The dust that comes off that process is the problem — and the law has known it for decades.

Because of where the plant sits, it falls under a specific Illinois air quality rule that caps fugitive particulate matter (airborne dust) opacity at 20%. That means at most, 20% of the light passing through the plant’s dust plumes can be blocked. Illinois also approved a federally enforceable State Implementation Plan — a binding contract between the state and the EPA — that makes these limits law. Granite City Slag received its Title V Clean Air Act operating permit on December 28, 2020. That permit detailed exactly what controls the company had to use, how to monitor them, and how to document compliance.

The company even wrote its own Fugitive Particulate Operating Program (FPOP) — twice, once in 2020 and again in 2023 — laying out the specific steps it promised to take. Those programs required two water cannons on the Surge Pile, spray bars on the feed hopper and conveyor belt, daily moisture testing of the Fines Storage Pile, daily water usage logging, and wet suppression of driving surfaces at the start of every shift. The company signed those programs. Then it ignored them.

The Violations: A Systematic, Multi-Year Collapse

The EPA’s enforcement document lists eight separate categories of violation covering a period stretching from September 2020 through at least June 2023. This was not a one-time accident or a brief equipment failure. This was a sustained, documented pattern of a company operating industrial equipment without the required pollution controls — for years.

On September 5, 2023, EPA inspectors conducted six off-site visible emission observations of the slag processing operations. Four of the six observations returned opacity readings of 44%, 37%, 39%, and 28% respectively. The legal limit is 20%. The worst reading — 44% — is more than twice the permitted ceiling. The EPA measured this using its own Alternative Method-082 as a six-minute average, so this was not a momentary spike.

The Numbers That Make It Real

What No Settlement Can Pay Back

Breathing Is Not Optional

Granite City, Illinois is an industrial community in Madison County, sitting in a corridor that has long carried more than its share of heavy industry and the health burdens that come with it. When a slag processing plant operates with broken dust controls for years on end, the people who absorb the consequences are not executives in a Chicago boardroom. They are the families living near 20th Street and Edwardsville Road — the people who open their windows in summer, who let their kids play in the yard, who walk to work, who cannot simply relocate when the air gets thick with industrial dust.

Fugitive particulate matter — the exact pollutant Granite City Slag released at more than three times the legal rate by mid-2023 — is classified as PM10 and fine particulate matter. These are particles small enough to lodge deep in lung tissue. Long-term exposure connects to asthma, bronchitis, cardiovascular disease, and premature death. The people who lived and worked near this facility during 2022 and 2023 did not consent to inhale 7.54 lbs/hr of industrial dust. They were given no notice. They had no choice.

The Betrayal Is in the Paper Trail

What makes this story particularly enraging is that Granite City Slag wrote its own pollution control programs. The company drafted the 2020 Fugitive Particulate Operating Program, signed it, submitted it to state regulators, and incorporated it into its federal operating permit. Then the company let those controls fall apart and kept running the plant — and kept submitting quarterly reports that documented zero hours of spray bar operation, essentially self-reporting the violations while continuing the violations.

The company went three years without collecting a single Surge Pile moisture sample — despite its own program requiring weekly sampling. The Fines Storage Pile was supposed to be tested daily; the logs show 652 missed sampling events across three years. One entire driving surface, Section C, received zero gallons of wet suppression from September 2020 through September 2023. These are not oversights. These are systematic decisions to skip the work that protects public health while still billing customers for fully processed slag.

The Spray Bar Cover Story

When EPA inspectors first showed up on May 17, 2023, facility staff told them directly: there were no water spray bars on the slag processing operations. The EPA immediately informed the company that the permit requires spray bars. Nine days later, the EPA sent a formal request asking for the company’s best estimate of when the spray bars were removed. The company responded on June 9, 2023, stating: “Upon further review, spray bars were never removed. They were not in operation due to broken lines. We have since repaired said lines and are now in operation.”

But when EPA inspectors returned on September 6, 2023, facility staff told them the spray nozzles had been offline since the beginning of the year. And the dust logs — the company’s own quarterly reports — show the conveyor #1 belt spray bar ran for 0.00 hours from January 1, 2022, to at least June 30, 2023. An 18-month streak of zero hours. The company told regulators the lines were simply broken and now fixed. The data tells a different story about how seriously anyone inside that facility was treating the problem.

Straight From the Document: The Quotes They Can’t Walk Back

Particulate Emissions: The Legal Limit vs. Reality

Who Pays the Price When Corporations Skip the Rules

Public Health: Breathing the Consequences of Corporate Negligence

Particulate matter is the pollutant at the center of this story, and it is among the most dangerous air pollutants that exist. The Clean Air Act’s stated purpose — written directly into the statute and cited in the EPA’s enforcement order — is to “protect and enhance the quality of the nation’s air so as to protect public health and welfare and the productive capacity of its population.” Granite City Slag violated that purpose for years, in a community that had no way of knowing the controls that were supposed to protect them had been switched off.

The EPA calculated that in 2022, with the conveyor spray bar running zero hours and the system operating at only 40% theoretical wet suppression efficiency, the plant was emitting 4.56 lbs of particulate matter per hour — nearly twice the permitted rate. By the first half of 2023, with both the conveyor belt spray bar and the feed hopper spray bar completely offline and wet suppression at 0% control, the emission rate hit 7.54 lbs/hr. That is 311% of the permitted limit pouring out of one industrial site into one residential community, shift after shift, for months.

On four separate occasions during a single inspection day — September 5, 2023 — opacity readings ranged from 28% to 44%. The 20% opacity limit exists because at that threshold, the particulate density in the air becomes a direct health threat. Readings of 37%, 39%, and 44% are not technical infractions. They are clouds of industrial dust rolling beyond a property line into the air that the people of Granite City, Illinois breathe every day.

Economic Inequality: The Community That Always Gets the Smokestack

Granite City is a working-class industrial city. It is not a community with the political or economic leverage to demand that corporations comply with the law without years of regulatory pressure. The pattern here — a facility operating in a lower-income industrial corridor, running out-of-compliance for three-plus years before regulators compelled any action — is not unique. It is the baseline expectation for communities that host heavy industry in America.

The economic math is straightforward and damning. The permit limit of 2.42 lbs/hr exists for a reason: it represents the maximum emission rate achievable through proper use of the required dust suppression equipment. By running the spray bars at zero hours, Granite City Slag saved money on water, maintenance, spare parts, and monitoring labor. The cost of that corner-cutting was not paid by the company. It was paid by the lungs of the people nearby, and by the future healthcare costs those people will carry. The company settled for $338,000 (enough to fund approximately 338 months of asthma medication for a child). The people who breathed those plumes received nothing.

The law permits civil penalties of up to $124,426 per day per violation. With eight separate violation categories covering periods spanning years, the theoretical maximum penalty in this case runs into the hundreds of millions. The actual settlement of $338,000 (roughly the cost of a single upper-middle-class home in the Chicago metro area) represents a cost of doing business — not a deterrent, not justice, and certainly not compensation for anyone who lived downwind.