EPA TRI Facility · Petroleum
The San Antonio Refinery LLC
San Antonio, TX · Parent: Allegiance Refining LLC
- Total releases
- 159.8K lbs
- Chemicals reported
- 8
- Carcinogens
- 3
- Primary pathway
- Air Releases
Reported-total composition
How the reported total is distributed
159.8K lbs across all reported pathways
- Air Releases 143.2K lbs 89.6%
- Off-site Transfers 16.7K lbs 10.4%
The segments reconcile to the cumulative total shown above. Off-site transfers are shown separately from releases to air, water, and land.
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
MID volume AIR pathway CARC-LEAN
The San Antonio Refinery LLC is an EPA Toxics Release Inventory reporter in San Antonio, TX, in the petroleum sector. It reported 30.4K lbs of releases across 8 chemicals in 2023, and 159.8K lbs in total across its 2019-2023 reporting years. That ranks 3,631 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. The San Antonio Refinery LLC is pounds #366 and chemical-count #382 at 159.8K 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 fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Oldcastle Precast Inc; Blue Wing Rm; Safety-Kleen Systems San Antonio (sab); Navistar San Antonio Manufacturing. Similar-scale Petroleum peers outside Texas: Calumet Cotton Valley Refining LLC Calumet Cotton Valley; Certainteed LLC; Schaeffer Manufacturing; Olein Recovery Corp: (refinery Plant). Largest disclosed chemicals by pounds: Toluene; Xylene (mixed isomers); n-Hexane; Benzene.
The San Antonio Refinery LLC has reported 159.8K lbs of toxic releases across 8 chemicals to the EPA Toxic Release Inventory, based on annual facility disclosures from 2019 through 2023. Of the chemicals reported, 3 are classified as carcinogens, representing 38% of the facility's chemical profile. The facility operates in the Petroleum sector. The primary release pathway is air releases, accounting for 90% of total releases. All release data shown below is self-reported to the EPA under the Emergency Planning and Community Right-to-Know Act (EPCRA) Section 313.
The San Antonio Refinery LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
160K lbs Top 14% higher than 86% 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
Where this facility sits in the TRI record
Among the 902 Petroleum facilities in this database, The San Antonio Refinery LLC reports the 141st-largest volume, placing it in the top 15.6% of its sector.
Placement is computed from reported TRI pounds in this database. Thresholds are fixed across every facility page: concentrated ≥60% of volume in one chemical, county-dominant ≥25% of the county total, carcinogen-heavy ≥50% of pounds. Share-based statements are shown only for sites reporting at least 1,000 lbs, because a share of a very small total is not a meaningful signal. Reported pounds are self-reported estimates and do not measure toxicity or health risk.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- The San Antonio Refinery LLC's total reported releases fell from 51.6 thousand lb in 2022 to 30.4 thousand lb in 2023, based on EPA TRI filings.
- The San Antonio Refinery LLC's off-site transfers fell from 16.2 thousand lb in 2022 to 242 lb in 2023, based on EPA TRI filings.
- The San Antonio Refinery LLC's air releases fell from 35.4 thousand lb in 2022 to 30.2 thousand lb in 2023, based on EPA TRI filings.
Quick Facts
Compare this facility
See how The San Antonio Refinery LLC stacks up against nearby facilities and the typical reporter.
32887.3× more than the comparison
4.0× 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 The San Antonio Refinery LLC releases toxic chemicals into the environment. Total: 159.8K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 156% (11.9K lbs to 30.4K lbs).
Reported total releases by year
The San Antonio Refinery LLC - annual TRI totals
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Year-over-year reported totals. TRI figures are self-reported estimates and can swing with production levels, waste-rock handling and reporting changes, not only with emissions controls.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 11.9K lbs | 8 |
| 2020 | 43.5K lbs | 8 |
| 2021 | 22.4K lbs | 8 |
| 2022 | 51.6K lbs | 8 |
| 2023 | 30.4K lbs | 8 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 3 of 8 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Toluene | 53.3K lbs | - |
| Xylene (mixed isomers) | 34.0K lbs | - |
| n-Hexane | 27.7K lbs | - |
| Benzene | 13.1K lbs | Carcinogen |
| Ethylbenzene | 12.6K lbs | Carcinogen |
| Naphthalene | 10.3K lbs | Carcinogen |
| Cyclohexane | 5.7K lbs | - |
| 1,2,4-Trimethylbenzene | 3.2K lbs | - |
Location
Nearest TRI Facilities to The San Antonio Refinery LLC
Closest other reporters in Texas - including Oldcastle Precast Inc, Blue Wing Rm, Safety-Kleen Systems San Antonio (sab), ordered by distance.
Showing 8 of 2,015 other reporting facilities in Texas.
Similar Petroleum Facilities
Other Petroleum facilities with similar total release volumes (±80%), outside Texas - e.g. Calumet Cotton Valley Refining LLC Calumet Cotton Valley, Certainteed LLC, Schaeffer Manufacturing.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest The San Antonio Refinery LLC on cumulative reported pounds (159.8K lbs) and distinct chemical count (8). Release-pound peers include Lubrizol Advanced Materials Inc, Cpp-Cleveland, Associated Milk Producers Inc.. Chemical-count peers include Prepa-South Coast Power Plant, Argos Puerto Rico Corp., US Tsubaki Automotive 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.
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 Toluene, Xylene (mixed isomers), n-Hexane, Benzene; nearby reporters include Oldcastle Precast Inc. The San Antonio Refinery LLC stamps MID volume · AIR pathway · CARC-LEAN 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 The San Antonio Refinery LLC record combines EPA TRI filings, facility identity, and compliance context without turning reported releases into a health-risk rating.
TRI release totals are self-reported estimates, not measured stack emissions. The methodology explains how records are joined, computed, and refreshed.
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.
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