EPA TRI Facility · Petroleum
Motiva-Port Arthur Refinery
Port Arthur, TX · Parent: Aramco Services Co
- Total releases
- 2.5M lbs
- Chemicals reported
- 35
- Carcinogens
- 12
- Primary pathway
- Air Releases
AIR Form-R mix
Motiva-Port Arthur Refinery: how the 2.5M lbs splits
2.5M lbs across all reported pathways
- Air Releases 2.3M lbs 90.7%
- Water Discharges 224.4K lbs 9.0%
- Off-site Transfers 6.0K lbs 0.2%
- Land Disposal 461 lbs <0.1%
Motiva-Port Arthur Refinery's 2.5M lbs Form-R total is AIR - air releases is 90.7% of the bar. Next segment: water discharges at 9.0%. Leading chemical by pounds: Hydrogen cyanide.
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.
HEAVY volume AIR pathway CARC-LEAN
Motiva-Port Arthur Refinery is an EPA Toxics Release Inventory reporter in Port Arthur, TX, in the petroleum sector. It reported 498.4K lbs of releases across 28 chemicals in 2023, and 2.5M lbs in total across its 2019-2023 reporting years. That ranks 741 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. Motiva-Port Arthur Refinery is pounds #74 and chemical-count #40 at 2.5M 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: Linde Port Arthur Hydrogen Facility 497; Premcor Refining Group Inc Port Arthur; Air Products LLC; Linde Port Arthur 2. Similar-scale Petroleum peers outside Texas: Marathon Petroleum Co LP Illinois Refining Div; Alon Refining Krotz Springs Inc; Chalmette Refining LLC; Harvest Louisiana Terminals LLC - Alliance Terminal. Other Aramco Services Co sites in this extract: Motiva - Port Arthur Chemicals; Motiva-Port Arthur Terminal; Motiva Port Neches Terminal. Largest disclosed chemicals by pounds: Hydrogen cyanide; Ammonia; Toluene; Hydrogen sulfide.
Motiva-Port Arthur Refinery stamps HEAVY volume with a dominant AIR pathway (90.7% air releases) across 35 chemicals · 12 carcinogen-classified. Cumulative Form-R extract: 2.5M lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Marathon Petroleum Co LP Illinois Refining Div and Alon Refining Krotz Springs Inc.
Motiva-Port Arthur Refinery vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
2.5M lbs Top 3% higher than 97% 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
Motiva-Port Arthur Refinery in the Petroleum sector extract
Among the 902 Petroleum facilities in this database, Motiva-Port Arthur Refinery reports the 41st-largest volume, placing it in the top 4.5% of its sector. Scale peers outside Texas include Marathon Petroleum Co LP Illinois Refining Div and Alon Refining Krotz Springs Inc.
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
- Motiva-Port Arthur Refinery's total reported releases fell from 556.0 thousand lb in 2022 to 498.4 thousand lb in 2023, based on EPA TRI filings.
- Motiva-Port Arthur Refinery's off-site transfers fell from 1.3 thousand lb in 2022 to 1.1 thousand lb in 2023, based on EPA TRI filings.
- Motiva-Port Arthur Refinery's air releases fell from 507.8 thousand lb in 2022 to 451.0 thousand lb in 2023, based on EPA TRI filings.
- Motiva-Port Arthur Refinery's water releases fell from 46.8 thousand lb in 2022 to 46.4 thousand lb in 2023, based on EPA TRI filings.
Motiva-Port Arthur Refinery Form-R facts
Compare this facility
See how Motiva-Port Arthur Refinery stacks up against nearby facilities and the typical reporter.
14.4× more than the comparison
7.0× 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 Motiva-Port Arthur Refinery releases toxic chemicals into the environment. Total: 2.5M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 1% (492.0K lbs to 498.4K lbs).
Motiva-Port Arthur Refinery: annual Form-R pounds
HEAVY site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021
- 2022
- 2023 0
What this shows Motiva-Port Arthur Refinery year-over-year reported totals (increased by 1% 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: Hydrogen cyanide.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 492.0K lbs | 27 |
| 2020 | 421.1K lbs | 31 |
| 2021 | 528.3K lbs | 31 |
| 2022 | 556.0K lbs | 28 |
| 2023 | 498.4K lbs | 28 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 12 of 35 chemicals are carcinogens. Sorted by total release volume.
Motiva-Port Arthur Refinery · AIR-pathway site
Nearest TRI Facilities to Motiva-Port Arthur Refinery
Closest other reporters in Texas - including Linde Port Arthur Hydrogen Facility 497, Premcor Refining Group Inc Port Arthur, Air Products LLC, 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. Marathon Petroleum Co LP Illinois Refining Div, Alon Refining Krotz Springs Inc, Chalmette Refining LLC.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Motiva-Port Arthur Refinery on cumulative reported pounds (2.5M lbs) and distinct chemical count (35). Release-pound peers include Solutia Inc, Ervin Industries Inc, Louisiana Integrated Polyethylene Jv LLC. Chemical-count peers include Catlettsburg Refining LLC, Lima Refining Co, Citgo Petroleum Corp Lemont Refinery. 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).
Other Aramco Services Co Facilities
Same-parent TRI sites ranked by reported releases - including Motiva - Port Arthur Chemicals, Motiva-Port Arthur Terminal, Motiva Port Neches Terminal.
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 Hydrogen cyanide, Ammonia, Toluene, Hydrogen sulfide; nearby reporters include Linde Port Arthur Hydrogen Facility 497. Motiva-Port Arthur Refinery stamps HEAVY 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 Motiva-Port Arthur Refinery TRI extract (HEAVY · AIR · CARC-LEAN · lead Hydrogen cyanide) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Motiva-Port Arthur Refinery totals are self-reported EPCRA §313 estimates for Port Arthur, TX, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 324110 · Petroleum. 3.5% of Jefferson TRI pounds in this extract. Nearest ABS peer: Solutia Inc (Δ 496 lbs). Pounds ≠ exposure.
Motiva-Port Arthur Refinery stamps HEAVY volume · AIR pathway · CARC-LEAN · lead Hydrogen cyanide. 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