Illinois Environmental Protection Act: Permits, Penalties, and Appeals

The Illinois Environmental Protection Act is the state’s unified pollution control law, codified at 415 ILCS 5/, and it governs air emissions, water discharges, solid waste, and hazardous waste through a permit system backed by civil fines up to $100,000 per violation plus $25,000 for each day a violation continues. The most serious hazardous waste offenses are felonies carrying fines up to $500,000 per day.¹ Two bodies share authority under the Act: the Illinois Environmental Protection Agency inspects facilities and issues permits, and the independent Illinois Pollution Control Board writes the regulations and decides contested enforcement cases.

What Activities the Act Covers

The statute is organized by environmental medium, and the title that applies to you determines which permit you need and which penalty cap controls.

Title II covers air. You cannot release contaminants that cause or contribute to air pollution, and you cannot build, install, or operate equipment capable of causing air pollution without an Agency permit. Open burning of refuse is prohibited, as is spraying loose asbestos for fireproofing or insulation.²

Title III covers water. Discharging contaminants that cause or tend to cause water pollution is prohibited, and so is increasing the volume or strength of an existing discharge, building new sewage treatment facilities, or creating new outlets without a permit. Point-source discharges into state waters require a National Pollutant Discharge Elimination System (NPDES) permit, and underground injection requires a separate Underground Injection Control (UIC) permit. Even putting contaminants on land in a way that creates a water pollution hazard is covered.³

Title V covers land and solid waste. Open dumping, defined as consolidating refuse at a site that does not meet sanitary landfill requirements, is one of the core prohibitions.⁴

Hazardous waste gets stricter treatment. Before depositing a hazardous waste stream at a permitted disposal site, the generator has to show the waste cannot reasonably be recycled, incinerated, or treated to render it nonhazardous. The Agency can impose permanent land-use restrictions on hazardous waste disposal sites and record them in county land records. Treating, storing, or disposing of hazardous waste requires a Resource Conservation and Recovery Act (RCRA) permit issued under Section 39.⁵

Permits: What You Have to Apply For and When the Agency Must Decide

Section 39 requires an Agency permit whenever Board regulations call for one to build or operate a facility, piece of equipment, vehicle, vessel, or aircraft. You have the burden of proving the operation will not violate the Act. The Agency can consider your past compliance history and attach reasonable conditions to prevent future violations.⁶

A statutory shot clock protects applicants. If the Agency takes no final action within 90 days of filing, you can treat the permit as issued. The window extends to 180 days when a public hearing is required by law or when the application involves a landfill. A denial has to come with a detailed explanation: which Act sections would be violated, which regulations apply, what information was missing, and why the standards would not be met.⁶

What Happens After You Get a Violation Notice

When the Agency flags a potential violation after an inspection or records review, it issues a Violation Notice under Section 31. The notice identifies each alleged violation and what the Agency believes needs to happen to fix it.⁷

You then have 45 days to respond in writing by certified mail. The response has to rebut, explain, or justify each alleged violation. You can propose a Compliance Commitment Agreement, and you can ask for a meeting with Agency staff. Miss the 45 days and the statute treats your silence as a waiver of the informal process; the Agency can move directly to formal enforcement.⁸

A Compliance Commitment Agreement is a binding contract between you and the Agency setting out corrective actions with deadlines. Completing a CCA counts as a mitigating factor when the Pollution Control Board later sets a penalty. Failing to honor one leaves you exposed to the full process.⁷

If informal resolution fails, the Agency refers the case to the Illinois Attorney General, who can file a formal complaint with the Board or in circuit court. In cases involving substantial danger to the environment or public health, the Attorney General can seek an immediate injunction without prior notice to the violator; a hearing then has to be scheduled within three working days.⁹

Civil Penalties by Program

Section 42 sets the civil penalty structure. The general ceiling is $100,000 per violation plus $25,000 for each day the violation continues.¹ Program-specific caps apply instead when the violation falls under a particular regulatory scheme:

NPDES permit violations (water discharge): up to $25,000 per day.
Underground Injection Control violations: up to $5,000 per day for most wells, or up to $25,000 plus $2,000 per day for Class II wells.
RCRA violations (hazardous waste): up to $50,000 per day.
Clean Air Act Permit Program violations: up to $25,000 per day.
Administrative citations for specific waste violations: $500 per violation for first offenses, with some categories at $1,500 per violation and $3,000 for repeat offenses.

When the Board sets the actual penalty within these caps, it weighs the duration and severity of the violation, your good-faith compliance efforts, any economic benefit you gained by not complying, the amount needed to deter future violations, your prior history, voluntary disclosure, agreement to a supplemental environmental project, and completion of a Compliance Commitment Agreement. The penalty must at least match any financial advantage you got from violating the law, unless that would create unreasonable financial hardship.¹

When Violations Become Crimes

Civil fines are not the ceiling. Under Section 44, any violation of the Act, its regulations, or a permit is a Class A misdemeanor carrying up to 364 days in jail. Submitting false information to the Agency is also a Class A misdemeanor. A court can tack on 100 to 300 hours of community service.¹⁰

The felony tier targets hazardous waste:

Calculated Criminal Disposal of Hazardous Waste: knowingly disposing of hazardous waste while aware it endangers another person or the public. Class 2 felony, fines up to $500,000 per day.
Criminal Disposal of Hazardous Waste: knowingly disposing without lawful justification. Class 3 felony, fines up to $250,000 per day.
Unlawful Delivery of Hazardous Waste: Class 3 felony, fines up to $250,000 per violation.
Unauthorized Use of Hazardous Waste: treating, transporting, or storing without the required permit. Class 4 felony, fines up to $100,000 per day.
Reckless Disposal of Hazardous Waste: Class 4 felony, fines up to $50,000 per day.
Concealment of Criminal Disposal: Class 4 felony, fines up to $50,000 per day.

Criminal fines stack on top of any civil penalties the Board imposes. A company that illegally dumps hazardous waste can face a civil enforcement action before the Board and a criminal prosecution in circuit court at the same time.¹⁰

Appealing an Agency Decision

If the Agency denies your permit or attaches conditions you cannot accept, you have 35 days from the date of the decision to petition the Pollution Control Board for a hearing. You and the Agency can agree in writing to extend that deadline by up to 90 additional days, but the extension notice has to be filed within the original 35-day window.¹¹

The Board generally has 120 days to decide. If it doesn’t act within that period, most permit types are treated as issued. At the hearing, you carry the burden of proof as the petitioner. The one exception: if the Agency set permit limits based on a specific water quality criterion, the Agency has to justify how it derived those limits. The Board must give 21 days’ notice of the hearing to anyone in the county who has requested notice, to local legislators, and through local newspaper publication.¹¹

Citizen Complaints

You do not have to be a regulated facility to use the Act. Any person can file a complaint directly with the Pollution Control Board against anyone allegedly violating the Act, its regulations, a permit, or a Board order. The complaint has to identify the specific provision being violated, describe how, and be served on the accused. Unless the Board finds it duplicative or frivolous, a hearing will be scheduled with at least 21 days’ notice to the accused party.⁸ Section 2 of the Act explicitly recognizes that “private as well as governmental remedies must be provided” to ease the burden on enforcement agencies.¹²

Where Federal Law Still Applies

Complying with the Illinois Act does not necessarily end your obligations. Federal statutes like the Clean Water Act and RCRA set minimum standards; the federal EPA delegates permitting and enforcement to states that run programs at least as stringent, and Illinois holds that delegated authority for the NPDES program.¹³ The federal EPA keeps the ability to “overfile” its own enforcement action when it determines the state’s response was inadequate, after consulting with the state.¹⁴ Federal emergency reporting also runs independently of the state Act: a release of a hazardous substance at or above its reportable quantity has to be reported immediately to the National Response Center, and facilities storing hazardous chemicals above threshold amounts have to submit annual Tier II inventory reports.¹⁵

1
Illinois General Assembly. Illinois Compiled Statutes 415 ILCS 5/42
2
Justia. Illinois Code 415 ILCS 5 Title II – Air Pollution
3
Justia. Illinois Code 415 ILCS 5 Title III – Water Pollution
4
Illinois General Assembly. Illinois Compiled Statutes 415 ILCS 5/3.305
5
Illinois General Assembly. Illinois Compiled Statutes 415 ILCS 5 – Hazardous Waste Provisions
6
Illinois General Assembly. Illinois Compiled Statutes 415 ILCS 5/39
7
Illinois Environmental Protection Agency. Compliance and Enforcement – Section: Violation Notice Process
8
Illinois General Assembly. Illinois Compiled Statutes 415 ILCS 5/31
9
Illinois General Assembly. Illinois Compiled Statutes 415 ILCS 5/43
10
Illinois General Assembly. Illinois Compiled Statutes 415 ILCS 5/44
11
Illinois General Assembly. Illinois Compiled Statutes 415 ILCS 5/40
12
Illinois General Assembly. Illinois Compiled Statutes 415 ILCS 5/2
13
Illinois Environmental Protection Agency. Compliance and Enforcement of NPDES Permits
14
U.S. Environmental Protection Agency. Guidance on RCRA Overfiling
15
eCFR. 40 CFR 280.53 – Reporting and Cleanup of Spills and Overfills