Ameren Corp
4 facilities · 1 state · 13.2M lbs total releases
According to the EPA Toxics Release Inventory, Ameren Corp is the reported parent of 4 Form R facilities across 1 state, disclosing 13.2M lbs of toxic releases. 8 of 82 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Missouri (13.2M lbs). Those TRI figures remain self-reported disclosure pounds for Ameren Corp, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Ameren Corp: EPA TRI 2023 reporting year
Same facilities, both years
-14.3%
4 facilities that filed in 2022 and 2023
Whole inventory
-14.3%
2.5 million lb → 2.2 million lb, every facility that filed
- Ameren Corp's total reported releases fell from 2.5 million lb in 2022 to 2.2 million lb in 2023, based on EPA TRI filings.
- Ameren Corp's air releases fell from 797.5 thousand lb in 2022 to 610.0 thousand lb in 2023, based on EPA TRI filings.
- Ameren Corp's off-site transfers rose from 4.0 thousand lb in 2022 to 4.6 thousand lb in 2023, based on EPA TRI filings.
- Ameren Corp's land releases fell from 1.7 million lb in 2022 to 1.6 million lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Ameren Corp from filing to facility
Largest Form R sites under this parent: Ameren Missouri Labadie Energy Center; Ameren Missouri Sioux Energy Center; Ameren Missouri Rush Island Energy Center; Ameren Missouri Meramec Energy Center. Neighbor parents on the disclosure ladder: The Renco Group Inc; Associated Electric Cooperative Inc; Enersys. Largest disclosed chemicals by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Barium And Barium Compounds; Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Hydrogen fluoride; Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size). Heaviest-reporting states in this extract: Missouri. Industry labels on the parent rollup: Electric Utilities. Start from those named sites and neighbors rather than a generic parent blurb; pounds stay disclosure, not risk.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files Toxics Release Inventory (TRI) · August 2026
Largest Form R sites under this parent: Ameren Missouri Labadie Energy Center; Ameren Missouri Sioux Energy Center; Ameren Missouri Rush Island Energy Center; Ameren Missouri Meramec Energy Center. Neighbor parents on the disclosure ladder: The Renco Group Inc; Associated Electric Cooperative Inc; Enersys. Largest disclosed chemicals by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Barium And Barium Compounds; Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Hydrogen fluoride; Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size). Heaviest-reporting states in this extract: Missouri. Industry labels on the parent rollup: Electric Utilities.
Ameren Corp ranks #130 of 4,988 slug-merged TRI parents by disclosed release pounds, mid-to-upper among parents, not a top-25 volume name. Ameren Corp's TRI Form R footprint is concentrated in a single state (Missouri), so statewide context matters more than a multi-state portfolio read. Ameren Corp's disclosed pounds are spread across 4 facilities, no single site dominates the parent total in this extract.
Parent aggregation for Ameren Corp follows facility-reported names. Compare the named neighbors (The Renco Group Inc; Associated Electric Cooperative Inc; Enersys) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Ameren Corp sits among TRI parents
Ameren Corp sits on a disclosure ladder beside The Renco Group Inc and Associated Electric Cooperative Inc and Enersys. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- The Renco Group Inc · rank #128 · 150.8M lbs
Lower disclosed volume
- Associated Electric Cooperative Inc · rank #131 · 12.9M lbs
- Enersys · rank #132 · 9.8M lbs
Largest chemicals disclosed by Ameren Corp
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Barium And Barium Compounds; Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Hydrogen fluoride; Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) lead the Form R pound rollup for this parent, including filings such as Ameren Missouri Labadie Energy Center. Pound totals, not toxicity-weighted risk.
Facilities (4)
| Facility | Releases |
|---|---|
| Ameren Missouri Labadie Energy Center Labadie, MO | 8.1M lbs |
| Ameren Missouri Sioux Energy Center West Alton, MO | 3.9M lbs |
| Ameren Missouri Rush Island Energy Center Festus, MO | 625.0K lbs |
| Ameren Missouri Meramec Energy Center Saint Louis, MO | 516.3K lbs |
Frequently Asked Questions
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Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest Ameren Corp on total disclosed release pounds (13.2M lbs) and reporting facility count (4). Release-volume peers include Cvr Energy Inc, Honeywell International Inc, Associated Electric Cooperative Inc. Facility-count peers include A Stucki Holding Corp, Advanced Heat Treat Corp, Alleima USA LLC. Neighborhoods are forced disjoint so each axis surfaces a different set of parents.
Similar disclosed release pounds
Nearest parents (≥3 facilities, ≥10k lbs) by absolute TRI disclosed pounds, not rank-adjacent ladder neighbors.
Similar facility count
Nearest parents by reporting-site count (deduped against the release-pound neighborhood).
About This Data
EPA TRI parent totals cover all media. This extract's heaviest states for the parent are Missouri; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Ameren Corp's TRI parent record
From Ameren Corp, open Ameren Missouri Labadie Energy Center or compare against The Renco Group Inc rather than reading rank alone.
- Open the largest Form R site for Ameren Corp (Ameren Missouri Labadie Energy Center in MO). Largest facility
- Compare against The Renco Group Inc, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Ameren Corp sits among all slug-merged TRI parents. All parent companies
Rank and peers (The Renco Group Inc, Associated Electric Cooperative Inc) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Ameren Corp's record groups disclosed TRI parent-company filings so readers can compare reporting context without treating the total as a measure of risk.
Company release figures are computed directly from EPA Toxic Release Inventory data; source names and the record-linking method are documented in the methodology.
Primary sources
- EPA Toxics Release Inventory Basic Data Files - annual facility-level chemical-release disclosures
PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.