EPA TRI Facility · Primary Metals
O'Fallon Casting
O Fallon, MO
- Total releases
- 16.1K lbs
- Chemicals reported
- 5
- Latest report
- 2023
- Primary pathway
- Air Releases
AIR Form-R mix
O'Fallon Casting: how the 16.1K lbs splits
16.1K lbs across all reported pathways
- Air Releases 12.1K lbs 75.0%
- Off-site Transfers 4.0K lbs 25.0%
O'Fallon Casting's 16.1K lbs Form-R total is AIR - air releases is 75.0% of the bar. Next segment: off-site transfers at 25.0%. Leading chemical by pounds: Ammonia.
LIGHT volume AIR pathway CLEAN
O'Fallon Casting is an EPA Toxics Release Inventory reporter in O Fallon, MO, in the primary metals sector. It reported 2.4K lbs of releases across 4 chemicals in 2023, and 16.1K lbs in total across its 2019-2023 reporting years. That ranks 8,733 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Missouri's 491 reporting TRI sites, pounds #1 is not chemical-count #1. O'Fallon Casting is pounds #216 and chemical-count #128 at 16.1K lbs. Buick Mine/mill leads reported pounds (48.2M lbs) at 8 chemicals (chemical-count #66). Buzzi Unicem Usa-Cape Girardeau leads chemical count at 87 chemicals (904.5K lbs, pounds #44). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: True Manufacturing Co Inc; Memc LLC; Modineer Plant 7; Woodbridge Corp Saint Peters. Similar-scale Primary Metals peers outside Missouri: Federal Metal Co; Real Alloy Speciality Products LLC; Os Kelly Co; Langeloth Metallurgical Co. Largest disclosed chemicals by pounds: Ammonia; Nitrate compounds (water dissociable; reportable only when in aqueous solution); Hydrogen fluoride; Nitric acid.
O'Fallon Casting stamps LIGHT volume with a dominant AIR pathway (75.0% air releases) across 5 chemicals. Cumulative Form-R extract: 16.1K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Federal Metal Co and Real Alloy Speciality Products LLC.
O'Fallon Casting vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
16K lbs Top 34% higher than 66% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
O'Fallon Casting: Ammonia-led volume
Among the 1,603 Primary Metals facilities in this database, O'Fallon Casting reports the 675th-largest volume (16.1K lbs). Its reported volume is concentrated rather than spread: Ammonia alone is 68.0% of the total. Scale peers outside Missouri include Federal Metal Co and Real Alloy Speciality Products LLC.
Concentrated means ≥60% of O'Fallon Casting's pounds in one chemical - here Ammonia at 68.0%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- O'Fallon Casting's total reported releases fell from 6.5 thousand lb in 2022 to 2.4 thousand lb in 2023, based on EPA TRI filings.
- O'Fallon Casting's off-site transfers fell from 4.0 thousand lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
- O'Fallon Casting's chemicals reported fell from 5 in 2022 to 4 in 2023, based on EPA TRI filings.
- O'Fallon Casting's air releases fell from 2.5 thousand lb in 2022 to 2.4 thousand lb in 2023, based on EPA TRI filings.
O'Fallon Casting Form-R facts
Compare this facility
See how O'Fallon Casting stacks up against nearby facilities and the typical reporter.
2011.5× more than the comparison
5.0× more than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How O'Fallon Casting releases toxic chemicals into the environment. Total: 16.1K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases held roughly flat (2.4K lbs to 2.4K lbs).
O'Fallon Casting: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows O'Fallon Casting year-over-year reported totals (held roughly flat from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Ammonia.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 2.4K lbs | 5 |
| 2020 | 2.7K lbs | 5 |
| 2021 | 2.2K lbs | 5 |
| 2022 | 6.5K lbs | 5 |
| 2023 | 2.4K lbs | 4 |
Chemical Releases
Aggregated across all reporting years (2019–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Ammonia | 10.9K lbs | - |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 4.0K lbs | - |
| Hydrogen fluoride | 576 lbs | - |
| Nitric acid | 550 lbs | - |
| Copper | 0 lbs | - |
O'Fallon Casting · AIR-pathway site
Nearest TRI Facilities to O'Fallon Casting
Closest other reporters in Missouri - including True Manufacturing Co Inc, Memc LLC, Modineer Plant 7, ordered by distance.
Showing 8 of 490 other reporting facilities in Missouri.
Similar Primary Metals Facilities
Other Primary Metals facilities with similar total release volumes (±80%), outside Missouri - e.g. Federal Metal Co, Real Alloy Speciality Products LLC, Os Kelly Co.
Compare beyond Missouri
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest O'Fallon Casting on cumulative reported pounds (16.1K lbs) and distinct chemical count (5). Release-pound peers include North American Pipe & Precast, Sun Chemical Corp, US Defense Logistics Agency Defense Supply Center Richmond. Chemical-count peers include Abbvie Ltd, Lilly del Caribe Inc Carolin A, Baxter Healthcare of Puerto Rico LLC. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
- North American Pipe & Precast Chandler, AZ · Nonmetallic Mineral Product 16.1K lbs reported
- Sun Chemical Corp Cincinnati, OH · Chemicals 16.1K lbs reported
- US Defense Logistics Agency Defense Supply Center Richmond Richmond, VA · Other 16.1K lbs reported
- Mplx Terminals LLC - Speedway in Terminal Indianapolis, IN · Petroleum Bulk Terminals 16.1K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen fluoride, Nitric acid; nearby reporters include True Manufacturing Co Inc. O'Fallon Casting stamps LIGHT volume · AIR pathway · CLEAN carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This O'Fallon Casting TRI extract (LIGHT · AIR · CLEAN · lead Ammonia) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
O'Fallon Casting totals are self-reported EPCRA §313 estimates for O Fallon, MO, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 331524 · Primary Metals. 0.3% of St. Charles TRI pounds in this extract. Nearest ABS peer: North American Pipe & Precast (Δ 1 lbs). Pounds ≠ exposure.
O'Fallon Casting stamps LIGHT volume · AIR pathway · CLEAN · lead Ammonia. PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov