EPA TRI Facility · Machinery
Stewart & Stevenson LLC
Houston, TX · Parent: Kirby Corp
- Total releases
- 239 lbs
- Chemicals reported
- 1
- Latest report
- 2023
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Stewart & Stevenson LLC: how the 239 lbs splits
239 lbs across all reported pathways
- Off-site Transfers 229 lbs 95.8%
- Air Releases 10 lbs 4.2%
Stewart & Stevenson LLC's 239 lbs Form-R total is OFFSITE - off-site transfers is 95.8% of the bar. Next segment: air releases at 4.2%. Leading chemical by pounds: Ethylene glycol.
TRACE volume OFFSITE pathway CLEAN
Stewart & Stevenson LLC is an EPA Toxics Release Inventory reporter in Houston, TX, in the machinery sector. It reported 229 lbs of releases across 1 chemical in 2023, and 239 lbs in total across its 2019-2023 reporting years. That ranks 15,654 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Texas's 2,016 reporting TRI sites, pounds #1 is not chemical-count #1. Stewart & Stevenson LLC is pounds #1437 and chemical-count #1723 at 239 lbs. Ascend Performance Materials-Chocolate Bayou Plant leads reported pounds (94.0M lbs) at 36 chemicals (chemical-count #35). Veolia Es Technical Solutions LLC Port Arthur Facility leads chemical count at 246 chemicals (1.5M lbs, pounds #112). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Wyman-Gordon Forgings LP; Howco Metals Management LLC; Chem One Ltd; Celeros Flow Technology. Similar-scale Machinery peers outside Texas: Structural Concepts Corp; Volvo Construction Equipment Na LLC Shippensburg; Heatcraft Refrigeration Produc Ts Inc.; Diamond Chain Co. Largest disclosed chemicals by pounds: Ethylene glycol.
Stewart & Stevenson LLC stamps TRACE volume with a dominant OFFSITE pathway (95.8% off-site transfers) across 1 chemical. Cumulative Form-R extract: 239 lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Structural Concepts Corp and Volvo Construction Equipment Na LLC Shippensburg.
Stewart & Stevenson LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
239 lbs 40th percentile higher than 40% 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
Stewart & Stevenson LLC in the Machinery sector extract
Among the 1,186 Machinery facilities in this database, Stewart & Stevenson LLC reports the 549th-largest volume (239 lbs). Scale peers outside Texas include Structural Concepts Corp and Volvo Construction Equipment Na LLC Shippensburg.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Stewart & Stevenson LLC's total reported releases rose from 0 lb in 2022 to 229 lb in 2023, based on EPA TRI filings.
- Stewart & Stevenson LLC's off-site transfers rose from 0 lb in 2022 to 229 lb in 2023, based on EPA TRI filings.
Stewart & Stevenson LLC Form-R facts
Compare this facility
See how Stewart & Stevenson LLC stacks up against nearby facilities and the typical reporter.
100% less than the comparison
80% 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 Stewart & Stevenson LLC releases toxic chemicals into the environment. Total: 239 lbs.
Emissions Trend Summary
Stewart & Stevenson LLC: annual Form-R pounds
TRACE site · OFFSITE pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Stewart & Stevenson LLC year-over-year reported totals. 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: Ethylene glycol.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 0 lbs | 1 |
| 2020 | 5 lbs | 1 |
| 2021 | 5 lbs | 1 |
| 2022 | 0 lbs | 1 |
| 2023 | 229 lbs | 1 |
Chemical Releases
Aggregated across all reporting years (2019–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Ethylene glycol | 239 lbs | - |
Stewart & Stevenson LLC · OFFSITE-pathway site
Nearest TRI Facilities to Stewart & Stevenson LLC
Closest other reporters in Texas - including Wyman-Gordon Forgings LP, Howco Metals Management LLC, Chem One Ltd, ordered by distance.
Showing 8 of 2,015 other reporting facilities in Texas.
Similar Machinery Facilities
Other Machinery facilities with similar total release volumes (±80%), outside Texas - e.g. Structural Concepts Corp, Volvo Construction Equipment Na LLC Shippensburg, Heatcraft Refrigeration Produc Ts Inc..
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 Ethylene glycol; nearby reporters include Wyman-Gordon Forgings LP. Stewart & Stevenson LLC stamps TRACE volume · OFFSITE 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 Stewart & Stevenson LLC TRI extract (TRACE · OFFSITE · CLEAN · lead Ethylene glycol) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Stewart & Stevenson LLC totals are self-reported EPCRA §313 estimates for Houston, TX, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 333132 · Machinery. 0.0% of Harris TRI pounds in this extract. Nearest ABS peer: Breitburn Dry Trail Gas Plt (Δ 0 lbs). Pounds ≠ exposure.
Stewart & Stevenson LLC stamps TRACE volume · OFFSITE pathway · CLEAN · lead Ethylene glycol. 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