EPA TRI Facility · Petroleum
Premcor Refining Group Inc Port Arthur
Port Arthur, TX · Parent: Valero Energy Corp
- Total releases
- 3.7M lbs
- Chemicals reported
- 49
- Carcinogens
- 15
- Primary pathway
- Air Releases
AIR Form-R mix
Premcor Refining Group Inc Port Arthur: how the 3.7M lbs splits
3.7M lbs across all reported pathways
- Air Releases 2.6M lbs 70.1%
- Off-site Transfers 697.4K lbs 18.8%
- Water Discharges 411.4K lbs 11.1%
- Land Disposal 2.4K lbs 0.1%
Premcor Refining Group Inc Port Arthur's 3.7M lbs Form-R total is AIR - air releases is 70.1% of the bar. Next segment: off-site transfers at 18.8%. 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
Premcor Refining Group Inc Port Arthur is an EPA Toxics Release Inventory reporter in Port Arthur, TX, in the petroleum sector. It reported 597.6K lbs of releases across 38 chemicals in 2023, and 3.7M lbs in total across its 2019-2023 reporting years. That ranks 530 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. Premcor Refining Group Inc Port Arthur is pounds #59 and chemical-count #17 at 3.7M 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: Air Products LLC; Linde Port Arthur 2; Chevron Phillips Chemical Co; Diamond Green Diesel Port Arthur Facility. Similar-scale Petroleum peers outside Texas: Marathon Petroleum Co LP; Shell Norco Chemical Plant; Phillips 66 Rodeo Renewable Energy Complex; Valero Refining - New Orleans LLC. Other Valero Energy Corp sites in this extract: Valero Refining - Texas L.P. Houston Refinery; Valero Refining-Texas LP; Diamond Shamrock Refining Co LP; Valero Refining-Texas LP Corpus Christi West Plant. Largest disclosed chemicals by pounds: Hydrogen cyanide; Asbestos (friable); Nitrate compounds (water dissociable; reportable only when in aqueous solution); Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
Premcor Refining Group Inc Port Arthur stamps HEAVY volume with a dominant AIR pathway (70.1% air releases) across 49 chemicals · 15 carcinogen-classified. Cumulative Form-R extract: 3.7M 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 and Shell Norco Chemical Plant.
Premcor Refining Group Inc Port Arthur vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
3.7M lbs Top 2% higher than 98% 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
Premcor Refining Group Inc Port Arthur in the Petroleum sector extract
Among the 902 Petroleum facilities in this database, Premcor Refining Group Inc Port Arthur reports the 26th-largest volume, placing it in the top 2.9% of its sector. Scale peers outside Texas include Marathon Petroleum Co LP and Shell Norco Chemical Plant.
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
- Premcor Refining Group Inc Port Arthur's total reported releases rose from 512.2 thousand lb in 2022 to 597.6 thousand lb in 2023, based on EPA TRI filings.
- Premcor Refining Group Inc Port Arthur's off-site transfers rose from 1.2 thousand lb in 2022 to 19.4 thousand lb in 2023, based on EPA TRI filings.
- Premcor Refining Group Inc Port Arthur's land releases rose from 254 lb in 2022 to 345 lb in 2023, based on EPA TRI filings.
- Premcor Refining Group Inc Port Arthur's air releases rose from 434.9 thousand lb in 2022 to 493.3 thousand lb in 2023, based on EPA TRI filings.
Premcor Refining Group Inc Port Arthur Form-R facts
Compare this facility
See how Premcor Refining Group Inc Port Arthur stacks up against nearby facilities and the typical reporter.
13.6× more than the comparison
8.2× 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 Premcor Refining Group Inc Port Arthur releases toxic chemicals into the environment. Total: 3.7M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 28% (833.2K lbs to 597.6K lbs).
Premcor Refining Group Inc Port Arthur: annual Form-R pounds
HEAVY site · AIR pathway · TRI years 2019–2023
- 2019
- 2020
- 2021
- 2022
- 2023
What this shows Premcor Refining Group Inc Port Arthur year-over-year reported totals (decreased by 28% 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 | 833.2K lbs | 42 |
| 2020 | 583.7K lbs | 42 |
| 2021 | 1.2M lbs | 39 |
| 2022 | 512.2K lbs | 36 |
| 2023 | 597.6K lbs | 38 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 15 of 49 chemicals are carcinogens. Sorted by total release volume.
Premcor Refining Group Inc Port Arthur · AIR-pathway site
Nearest TRI Facilities to Premcor Refining Group Inc Port Arthur
Closest other reporters in Texas - including Air Products LLC, Linde Port Arthur 2, Chevron Phillips Chemical Co, 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, Shell Norco Chemical Plant, Phillips 66 Rodeo Renewable Energy Complex.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Premcor Refining Group Inc Port Arthur on cumulative reported pounds (3.7M lbs) and distinct chemical count (49). Release-pound peers include Duke Energy Carolinas LLC - Rogers Energy Complex, McWane Ductile Ohio, Novelis Alr Aluminum LLC - Novelis Davenport Casting. Chemical-count peers include Westlake Vinyls Inc, Vickery Environmental Inc., Safety-Kleen Systems Inc.. 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.
- Duke Energy Carolinas LLC - Rogers Energy Complex Mooresboro, NC · Electric Utilities 3.7M lbs reported
- McWane Ductile Ohio Coshocton, OH · Primary Metals 3.7M lbs reported
- Novelis Alr Aluminum LLC - Novelis Davenport Casting Davenport, IA · Primary Metals 3.7M lbs reported
- Scherer Steam Electric Generating Plant Juliette, GA · Electric Utilities 3.7M lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Valero Energy Corp Facilities
Same-parent TRI sites ranked by reported releases - including Valero Refining - Texas L.P. Houston Refinery, Valero Refining-Texas LP, Diamond Shamrock Refining Co LP.
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, Asbestos (friable), Nitrate compounds (water dissociable; reportable only when in aqueous solution), Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); nearby reporters include Air Products LLC. Premcor Refining Group Inc Port Arthur 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 Premcor Refining Group Inc Port Arthur TRI extract (HEAVY · AIR · CARC-LEAN · lead Hydrogen cyanide) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Premcor Refining Group Inc Port Arthur 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. 5.2% of Jefferson TRI pounds in this extract. Nearest ABS peer: Duke Energy Carolinas LLC - Rogers Energy Complex (Δ 9.3K lbs). Pounds ≠ exposure.
Premcor Refining Group Inc Port Arthur 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