EPA TRI Facility · Petroleum
Superior Refining Co LLC
Superior, WI · Parent: Superior Refining Co LLC
- Total releases
- 422.2K lbs
- Chemicals reported
- 21
- Carcinogens
- 7
- Primary pathway
- Air Releases
AIR Form-R mix
Superior Refining Co LLC: how the 422.2K lbs splits
422.2K lbs across all reported pathways
- Air Releases 419.1K lbs 99.3%
- Off-site Transfers 3.1K lbs 0.7%
- Water Discharges 6 lbs <0.1%
- Land Disposal 0 lbs <0.1%
Superior Refining Co LLC's 422.2K lbs Form-R total is AIR - air releases is 99.3% of the bar. Next segment: off-site transfers at 0.7%. Leading chemical by pounds: Xylene (mixed isomers).
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
Superior Refining Co LLC is an EPA Toxics Release Inventory reporter in Superior, WI, in the petroleum sector. It reported 230.0K lbs of releases across 21 chemicals in 2023, and 422.2K lbs in total across its 2019-2023 reporting years. That ranks 2,164 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Wisconsin's 836 reporting TRI sites, pounds #1 is not chemical-count #1. Superior Refining Co LLC is pounds #57 and chemical-count #13 at 422.2K lbs. Mullins Cheese Inc leads reported pounds (11.2M lbs) at 3 chemicals (chemical-count #319). Ppg Industries Inc-Oak Creek leads chemical count at 32 chemicals (2.2M lbs, pounds #16). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Graymont (wi) Inc.; Charter Next Generation - Superior; Amsoil Inc-Amsoil Center; Genesis Attachments LLC. Similar-scale Petroleum peers outside Wisconsin: Cleveland-Cliffs Cleveland Works LLC DBA Cleveland-Cliffs Wa; Philadelphia Energy Solutions Refining Philadelphia Refinery; Amlon Port Allen LLC; Countrymark Refining & Logistics LLC. Largest disclosed chemicals by pounds: Xylene (mixed isomers); n-Hexane; Toluene; 1,2,4-Trimethylbenzene.
Superior Refining Co LLC stamps MID volume with a dominant AIR pathway (99.3% air releases) across 21 chemicals · 7 carcinogen-classified. Cumulative Form-R extract: 422.2K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Cleveland-Cliffs Cleveland Works LLC DBA Cleveland-Cliffs Wa and Philadelphia Energy Solutions Refining Philadelphia Refinery.
Superior Refining Co LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
422K lbs Top 8% higher than 92% 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
Superior Refining Co LLC in the Petroleum sector extract
Among the 902 Petroleum facilities in this database, Superior Refining Co LLC reports the 115th-largest volume, placing it in the top 12.7% of its sector. Scale peers outside Wisconsin include Cleveland-Cliffs Cleveland Works LLC DBA Cleveland-Cliffs Wa and Philadelphia Energy Solutions Refining Philadelphia Refinery.
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
- Superior Refining Co LLC's total reported releases rose from 31.3 thousand lb in 2022 to 230.0 thousand lb in 2023, based on EPA TRI filings.
- Superior Refining Co LLC's air releases rose from 28.4 thousand lb in 2022 to 229.9 thousand lb in 2023, based on EPA TRI filings.
- Superior Refining Co LLC's off-site transfers fell from 2.9 thousand lb in 2022 to 80 lb in 2023, based on EPA TRI filings.
- Superior Refining Co LLC's chemicals reported rose from 20 in 2022 to 21 in 2023, based on EPA TRI filings.
Superior Refining Co LLC Form-R facts
Compare this facility
See how Superior Refining Co LLC stacks up against nearby facilities and the typical reporter.
58% less 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 Superior Refining Co LLC releases toxic chemicals into the environment. Total: 422.2K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 105% (112.2K lbs to 230.0K lbs).
Superior Refining 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 Superior Refining Co LLC year-over-year reported totals (increased by 105% 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: Xylene (mixed isomers).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 112.2K lbs | 20 |
| 2020 | 26.2K lbs | 20 |
| 2021 | 22.6K lbs | 20 |
| 2022 | 31.3K lbs | 20 |
| 2023 | 230.0K lbs | 21 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 7 of 21 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Xylene (mixed isomers) | 100.6K lbs | - |
| n-Hexane | 90.8K lbs | - |
| Toluene | 89.9K lbs | - |
| 1,2,4-Trimethylbenzene | 73.6K lbs | - |
| Benzene | 30.7K lbs | Carcinogen |
| Ethylbenzene | 21.2K lbs | Carcinogen |
| Cyclohexane | 3.0K lbs | - |
| Propylene | 2.9K lbs | - |
| Polycyclic aromatic compounds | 2.8K lbs | Carcinogen |
| Naphthalene | 2.8K lbs | Carcinogen |
| Cumene | 2.3K lbs | Carcinogen |
| Ethylene | 958 lbs | - |
| Hydrogen sulfide | 574 lbs | - |
| Lead | 79 lbs | Carcinogen |
| Mercury | 3 lbs | - |
| Aluminum oxide (fibrous forms) | 0 lbs | - |
| Ammonia | 0 lbs | - |
| Diethanolamine | 0 lbs | - |
| Hydrogen fluoride | 0 lbs | - |
| Molybdenum trioxide | 0 lbs | Carcinogen |
| Methanol | 0 lbs | - |
Superior Refining Co LLC · AIR-pathway site
Nearest TRI Facilities to Superior Refining Co LLC
Closest other reporters in Wisconsin - including Graymont (wi) Inc., Charter Next Generation - Superior, Amsoil Inc-Amsoil Center, ordered by distance.
Showing 8 of 835 other reporting facilities in Wisconsin.
Similar Petroleum Facilities
Other Petroleum facilities with similar total release volumes (±80%), outside Wisconsin - e.g. Cleveland-Cliffs Cleveland Works LLC DBA Cleveland-Cliffs Wa, Philadelphia Energy Solutions Refining Philadelphia Refinery, Amlon Port Allen LLC.
Compare beyond Wisconsin
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Superior Refining Co LLC on cumulative reported pounds (422.2K lbs) and distinct chemical count (21). Release-pound peers include Caribbean Can Manufacturing Co LLC, Jacuzzi Luxury Bath, Akwel Cadillac USA Inc.. Chemical-count peers include Clean Earth of North Jersey Inc, Cleveland-Cliffs Monessen Coke LLC, Uss Mon Valley Works - Edgar Thomson Plant. 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.
- Caribbean Can Manufacturing Co LLC Cidra, PR · Fabricated Metals 422.5K lbs reported
- Jacuzzi Luxury Bath Valdosta, GA · Plastics and Rubber 422.7K lbs reported
- Akwel Cadillac USA Inc. Cadillac, MI · Plastics and Rubber 421.5K lbs reported
- Pge Beaver Plant & Port Westward Plant Clatskanie, OR · Electric Utilities 421.4K lbs reported
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 Xylene (mixed isomers), n-Hexane, Toluene, 1,2,4-Trimethylbenzene; nearby reporters include Graymont (wi) Inc.. Superior Refining 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 Superior Refining Co LLC TRI extract (MID · AIR · CARC-LEAN · lead Xylene (mixed isomers)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Superior Refining Co LLC totals are self-reported EPCRA §313 estimates for Superior, WI, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 324110 · Petroleum. 17.2% of Douglas TRI pounds in this extract. Nearest ABS peer: Caribbean Can Manufacturing Co LLC (Δ 321 lbs). Pounds ≠ exposure.
Superior Refining Co LLC stamps MID volume · AIR pathway · CARC-LEAN · lead Xylene (mixed isomers). 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