EPA TRI Facility · Electrical Equipment
Zoltek Corp
Saint Peters, MO · Parent: Zoltek Corp
- Total releases
- 38.2K lbs
- Chemicals reported
- 1
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Zoltek Corp: how the 38.2K lbs splits
38.2K lbs across all reported pathways
- Air Releases 38.2K lbs 100.0%
Zoltek Corp's 38.2K lbs Form-R total is AIR - air releases is 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases. Leading chemical by pounds: Styrene.
LIGHT volume AIR pathway CARC-HEAVY
Zoltek Corp is an EPA Toxics Release Inventory reporter in Saint Peters, MO, in the electrical equipment sector. It reported 1.9K lbs of releases across 1 chemical in 2023, and 38.2K lbs in total across its 2019-2023 reporting years. That ranks 6,762 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. Zoltek Corp is pounds #170 and chemical-count #384 at 38.2K 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: Woodbridge Corp Saint Peters; Modineer Plant 7; Memc LLC; True Manufacturing Co Inc. Similar-scale Electrical Equipment peers outside Missouri: Checon LLC; Bridgeport Fittings LLC; Lex Products West; Corning Optical Communications Llc-Hmtc. Largest disclosed chemicals by pounds: Styrene.
Zoltek Corp stamps LIGHT volume with a dominant AIR pathway (100.0% air releases) across 1 chemical · 1 carcinogen-classified. Cumulative Form-R extract: 38.2K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Checon LLC and Bridgeport Fittings LLC.
Zoltek Corp vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
38K lbs Top 26% higher than 74% 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
Zoltek Corp: Styrene-led volume
Among the 566 Electrical Equipment facilities in this database, Zoltek Corp reports the 118th-largest volume, placing it in the top 20.8% of its sector. Its reported volume is concentrated rather than spread: Styrene alone is 100% of the total. Carcinogen-classified chemicals make up 100% of the reported pounds, not just of the chemical count. Scale peers outside Missouri include Checon LLC and Bridgeport Fittings LLC.
Concentrated means ≥60% of Zoltek Corp's pounds in one chemical - here Styrene at 100%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Zoltek Corp's total reported releases fell from 2.3 thousand lb in 2022 to 1.9 thousand lb in 2023, based on EPA TRI filings.
- Zoltek Corp's air releases fell from 2.3 thousand lb in 2022 to 1.9 thousand lb in 2023, based on EPA TRI filings.
Zoltek Corp Form-R facts
Compare this facility
See how Zoltek Corp stacks up against nearby facilities and the typical reporter.
90.3× more than the comparison
67% less 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 Zoltek Corp releases toxic chemicals into the environment. Total: 38.2K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 52% (4.0K lbs to 1.9K lbs).
Zoltek Corp: 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 Zoltek Corp year-over-year reported totals (decreased by 52% 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: Styrene.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 4.0K lbs | 1 |
| 2020 | 14.9K lbs | 1 |
| 2021 | 15.1K lbs | 1 |
| 2022 | 2.3K lbs | 1 |
| 2023 | 1.9K lbs | 1 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 1 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Styrene | 38.2K lbs | Carcinogen |
Zoltek Corp · AIR-pathway site
Nearest TRI Facilities to Zoltek Corp
Closest other reporters in Missouri - including Woodbridge Corp Saint Peters, Modineer Plant 7, Memc LLC, ordered by distance.
Showing 8 of 490 other reporting facilities in Missouri.
Similar Electrical Equipment Facilities
Other Electrical Equipment facilities with similar total release volumes (±80%), outside Missouri - e.g. Checon LLC, Bridgeport Fittings LLC, Lex Products West.
Compare beyond Missouri
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Zoltek Corp on cumulative reported pounds (38.2K lbs) and distinct chemical count (1). Release-pound peers include Thermo Fisher Scientific Inc., Stella-Jones Corp, Hexatronic Rochester Cable Inc.. Chemical-count peers include Ecoelectrica LP, Planta Penuelas, Tallaboa 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.
- Thermo Fisher Scientific Inc. Manati, PR · Chemicals 38.2K lbs reported
- Stella-Jones Corp Converse, LA · Wood Products 38.2K lbs reported
- Hexatronic Rochester Cable Inc. Culpeper, VA · Primary Metals 38.3K lbs reported
- Ineos USA LLC Stratton Ridge Clute, TX · Petroleum Bulk Terminals 38.3K 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 Styrene; nearby reporters include Woodbridge Corp Saint Peters. Zoltek Corp stamps LIGHT volume · AIR pathway · CARC-HEAVY 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 Zoltek Corp TRI extract (LIGHT · AIR · CARC-HEAVY · lead Styrene) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Zoltek Corp totals are self-reported EPCRA §313 estimates for Saint Peters, MO, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 335991 · Electrical Equipment. 0.6% of St. Charles TRI pounds in this extract. Nearest ABS peer: Thermo Fisher Scientific Inc. (Δ 18 lbs). Pounds ≠ exposure.
Zoltek Corp stamps LIGHT volume · AIR pathway · CARC-HEAVY · lead Styrene. 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