EPA TRI Facility · Petroleum
Tesoro Refining & Marketing Co LLC
Anacortes, WA · Parent: Marathon Petroleum Corp
- Total releases
- 724.5K lbs
- Chemicals reported
- 43
- Carcinogens
- 12
- Primary pathway
- Air Releases
AIR Form-R mix
Tesoro Refining & Marketing Co LLC: how the 724.5K lbs splits
724.5K lbs across all reported pathways
- Air Releases 619.3K lbs 85.5%
- Off-site Transfers 90.2K lbs 12.4%
- Water Discharges 12.4K lbs 1.7%
- Land Disposal 2.6K lbs 0.4%
Tesoro Refining & Marketing Co LLC's 724.5K lbs Form-R total is AIR - air releases is 85.5% of the bar. Next segment: off-site transfers at 12.4%. Leading chemical by pounds: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
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
Tesoro Refining & Marketing Co LLC is an EPA Toxics Release Inventory reporter in Anacortes, WA, in the petroleum sector. It reported 121.9K lbs of releases across 30 chemicals in 2023, and 724.5K lbs in total across its 2019-2023 reporting years. That ranks 1,579 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Washington's 311 reporting TRI sites, pounds #1 is not chemical-count #1. Tesoro Refining & Marketing Co LLC is pounds #25 and chemical-count #2 at 724.5K lbs. Lamb Weston Inc Richland Facility leads reported pounds (13.1M lbs) at 3 chemicals (chemical-count #106). Hf Sinclair Puget Sound Refining LLC leads chemical count at 46 chemicals (711.7K lbs, pounds #26). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Chemtrade Solutions LLC; Air Liquide Hydrogen Plant; Hf Sinclair Puget Sound Refining LLC; Dakota Creek Industries Inc.. Similar-scale Petroleum peers outside Washington: Valero Refining Co -Oklahoma Valero Ardmore Refinery; Middletown Coke Co; Ultramar Inc Wilmington Refinery; Tesoro Refining & Marketing Co LLC. Other Marathon Petroleum Corp sites in this extract: Blanchard Refining Co LLC; Marathon Petroleum Co LP; Marathon Mandan Refinery; Catlettsburg Refining LLC. Largest disclosed chemicals by pounds: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Toluene; Xylene (mixed isomers); Hydrogen sulfide.
Tesoro Refining & Marketing Co LLC stamps MID volume with a dominant AIR pathway (85.5% air releases) across 43 chemicals · 12 carcinogen-classified. Cumulative Form-R extract: 724.5K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Valero Refining Co -Oklahoma Valero Ardmore Refinery and Middletown Coke Co.
Tesoro Refining & Marketing Co LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
724K lbs Top 6% higher than 94% 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
Tesoro Refining & Marketing Co LLC inside Skagit's TRI pounds
Among the 902 Petroleum facilities in this database, Tesoro Refining & Marketing Co LLC reports the 94th-largest volume, placing it in the top 10.4% of its sector. This one site accounts for 46.0% of every pound reported in Skagit. Scale peers outside Washington include Valero Refining Co -Oklahoma Valero Ardmore Refinery and Middletown Coke Co.
County-dominant here means ≥25% of Skagit's reported pounds (1.6M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Tesoro Refining & Marketing Co LLC's total reported releases fell from 135.3 thousand lb in 2022 to 121.9 thousand lb in 2023, based on EPA TRI filings.
- Tesoro Refining & Marketing Co LLC's off-site transfers rose from 1.6 thousand lb in 2022 to 12.4 thousand lb in 2023, based on EPA TRI filings.
- Tesoro Refining & Marketing Co LLC's air releases fell from 131.9 thousand lb in 2022 to 107.4 thousand lb in 2023, based on EPA TRI filings.
- Tesoro Refining & Marketing Co LLC's water releases rose from 1.9 thousand lb in 2022 to 2.1 thousand lb in 2023, based on EPA TRI filings.
Tesoro Refining & Marketing Co LLC Form-R facts
Compare this facility
See how Tesoro Refining & Marketing Co LLC stacks up against nearby facilities and the typical reporter.
16.8× more than the comparison
21.5× 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 Tesoro Refining & Marketing Co LLC releases toxic chemicals into the environment. Total: 724.5K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 31% (176.1K lbs to 121.9K lbs).
Tesoro Refining & Marketing Co LLC: annual Form-R pounds
MID site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Tesoro Refining & Marketing Co LLC year-over-year reported totals (decreased by 31% 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: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 176.1K lbs | 31 |
| 2020 | 138.9K lbs | 34 |
| 2021 | 152.3K lbs | 31 |
| 2022 | 135.3K lbs | 30 |
| 2023 | 121.9K lbs | 30 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 12 of 43 chemicals are carcinogens. Sorted by total release volume.
Tesoro Refining & Marketing Co LLC · AIR-pathway site
Nearest TRI Facilities to Tesoro Refining & Marketing Co LLC
Closest other reporters in Washington - including Chemtrade Solutions LLC, Air Liquide Hydrogen Plant, Hf Sinclair Puget Sound Refining LLC, ordered by distance.
Showing 8 of 310 other reporting facilities in Washington.
Similar Petroleum Facilities
Other Petroleum facilities with similar total release volumes (±80%), outside Washington - e.g. Valero Refining Co -Oklahoma Valero Ardmore Refinery, Middletown Coke Co, Ultramar Inc Wilmington Refinery.
Compare beyond Washington
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Tesoro Refining & Marketing Co LLC on cumulative reported pounds (724.5K lbs) and distinct chemical count (43). Release-pound peers include Gates Corp, Ega Spectro Alloys, Seatrium Amfels Inc.. Chemical-count peers include Sabic Innovative Plastics Mt. Vernon LLC, Alcoa Warrick Newco LLC, Rubicon 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.
- Gates Corp Siloam Springs, AR · Plastics and Rubber 724.4K lbs reported
- Ega Spectro Alloys Rosemount, MN · Primary Metals 724.6K lbs reported
- Seatrium Amfels Inc. Brownsville, TX · Transportation Equipment 723.8K lbs reported
- Safety-Kleen Systems Inc. Smithfield, KY · Hazardous Waste 725.8K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Marathon Petroleum Corp Facilities
Same-parent TRI sites ranked by reported releases - including Blanchard Refining Co LLC, Marathon Petroleum Co LP, Marathon Mandan Refinery.
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 Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Toluene, Xylene (mixed isomers), Hydrogen sulfide; nearby reporters include Chemtrade Solutions LLC. Tesoro Refining & Marketing Co 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 Tesoro Refining & Marketing Co LLC TRI extract (MID · AIR · CARC-LEAN · lead Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Tesoro Refining & Marketing Co LLC totals are self-reported EPCRA §313 estimates for Anacortes, WA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 324110 · Petroleum. 46.0% of Skagit TRI pounds in this extract. Nearest ABS peer: Gates Corp (Δ 109 lbs). Pounds ≠ exposure.
Tesoro Refining & Marketing Co LLC stamps MID volume · AIR pathway · CARC-LEAN · lead Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size). 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