TRI facility · TRI 2024 reporting year

Prairie State Generating CO

Total reported releases 6.7M lb held roughly steady year over year (-4%). Total releases concentrations are up 64% since 2012.

1739 NEW MARIGOLD ROAD, Marissa, Illinois · 221112 · Electric Utilities

TOTAL RELEASES · 20122024
Bar chart of annual values from 2012 to 2024, in lb. Most recent year (2024): 6.7M.8.7M'12'14'16'18'20'22'246.7M
Anomaly engine

Notable Signals

LONG-ARC REGRESSION · LONG-ARC SHIFT

Vanadium compounds

Vanadium compounds at Prairie State Generating CO have more than doubled since 2012 (through 2024).

LONG-ARC REGRESSION · LONG-ARC SHIFT

Zinc compounds

Zinc compounds at Prairie State Generating CO have risen 86% since 2012 (through 2024).

LONG-ARC REGRESSION · LONG-ARC SHIFT

Total reported releases

Total reported releases at Prairie State Generating CO have risen 64% since 2012 (through 2024).

YEAR-OVER-YEAR DROP · RELEASE SHIFT

N020

N020 releases at Prairie State Generating CO fell from 20k lb to 0 lb (100% lower) between 2023 and 2024.

Chemicals reported · most recent year

What This Facility Releases

GENERALCAS N982

Zinc compounds

1.7M lb · +6% YoY

Zinc compounds concentrations are up 86% since 2012.

GENERALCAS N040

Barium And Barium Compounds

1.2M lb · -20% YoY

Barium And Barium Compounds concentrations are roughly unchanged from 2012.

GENERALCAS N770

Vanadium compounds

1.2M lb · +13% YoY

Vanadium compounds concentrations have more than doubled since 2012.

RESPIRATORYCAS N090

Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)

732k lb · -9% YoY

Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) concentrations are up 38% since 2012.

RESPIRATORYCAS N450

Manganese And Manganese Compounds

465k lb · -3% YoY

Manganese And Manganese Compounds concentrations have more than doubled since 2013.

CARCINOGENCAS N495

Nickel And Nickel Compounds

445k lb · -4% YoY

Nickel And Nickel Compounds concentrations are up 81% since 2012.

GENERALCAS 7664-93-9

Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

360k lb · -1% YoY

Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations are up 25% since 2012.

GENERALCAS N100

Copper And Copper Compounds

346k lb · -12% YoY

Copper And Copper Compounds concentrations have more than doubled since 2012.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Washington County County, IL (no Census block groups within 3 miles — falling back to containing county): a population of 13,781. Why we surface this →

POPULATION SHARE
8.0%

Low-income

POPULATION SHARE
4.6%

People of color

POPULATION SHARE
6.7%

Under age 5

POPULATION SHARE
20.8%

Over age 64

Source: Census ACS 2018-2022 (5-year), county-level fallback. Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.

Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.

What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.