EPA TRI Facility · Natural Gas Processing
Aux Sable Midstream
Palermo, ND
- Total releases
- 30.8K lbs
- Chemicals reported
- 2
- Latest report
- 2023
- Primary pathway
- Air Releases
AIR Form-R mix
Aux Sable Midstream: how the 30.8K lbs splits
30.8K lbs across all reported pathways
- Air Releases 30.8K lbs 100.0%
Aux Sable Midstream's 30.8K lbs Form-R total is AIR - air releases is 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases. Leading chemical by pounds: n-Hexane.
LIGHT volume AIR pathway CLEAN
Aux Sable Midstream is an EPA Toxics Release Inventory reporter in Palermo, ND, in the natural gas processing sector. It reported 15.4K lbs of releases across 2 chemicals in 2023, and 30.8K lbs in total across its 2022-2023 reporting years. That ranks 7,258 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In North Dakota's 94 reporting TRI sites, Basin Electric Antelope Valley Station leads both reported pounds (167.8M lbs) and chemical count (55 chemicals). The two rankings do not invert in this pool. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Palermo Product Terminal; Andeavor Field Services LLC - Stanley Compressor Station; Andeavor Field Services LLC - Robinson Lake Gas Plant; Cicada Logistics. Similar-scale Natural Gas Processing peers outside North Dakota: Bargath Parachute Gas Plant; Oxy Permian - Slaughter/mallet Complex; Artesia Gas Plant; Pecan Pipeline Co Kripple Kreek Gas Plant. Largest disclosed chemicals by pounds: n-Hexane; Methanol.
Aux Sable Midstream stamps LIGHT volume with a dominant AIR pathway (100.0% air releases) across 2 chemicals. Cumulative Form-R extract: 30.8K lbs (2022–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Bargath Parachute Gas Plant and Oxy Permian - Slaughter/mallet Complex.
Aux Sable Midstream vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
31K lbs Top 28% higher than 72% 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
Aux Sable Midstream: n-Hexane-led volume
Among the 339 Natural Gas Processing facilities in this database, Aux Sable Midstream reports the 144th-largest volume (30.8K lbs). Its reported volume is concentrated rather than spread: n-Hexane alone is 67.3% of the total. Scale peers outside North Dakota include Bargath Parachute Gas Plant and Oxy Permian - Slaughter/mallet Complex.
Concentrated means ≥60% of Aux Sable Midstream's pounds in one chemical - here n-Hexane at 67.3%. Not a toxicity score.
Aux Sable Midstream Form-R facts
Compare this facility
See how Aux Sable Midstream stacks up against nearby facilities and the typical reporter.
44% more than the comparison
67% less 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 Aux Sable Midstream releases toxic chemicals into the environment. Total: 30.8K lbs.
Emissions Trend Summary
From 2022 to 2023, total releases held roughly flat (15.4K lbs to 15.4K lbs).
Aux Sable Midstream: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2022–2023
- 2022 0
- 2023 0
What this shows Aux Sable Midstream year-over-year reported totals (held roughly flat from 2022 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: n-Hexane.
| Year | Total | Chemicals |
|---|---|---|
| 2022 | 15.4K lbs | 2 |
| 2023 | 15.4K lbs | 2 |
Aux Sable Midstream · AIR-pathway site
Nearest TRI Facilities to Aux Sable Midstream
Closest other reporters in North Dakota - including Palermo Product Terminal, Andeavor Field Services LLC - Stanley Compressor Station, Andeavor Field Services LLC - Robinson Lake Gas Plant, ordered by distance.
Showing 8 of 93 other reporting facilities in North Dakota.
Similar Natural Gas Processing Facilities
Other Natural Gas Processing facilities with similar total release volumes (±80%), outside North Dakota - e.g. Bargath Parachute Gas Plant, Oxy Permian - Slaughter/mallet Complex, Artesia Gas Plant.
Compare beyond North Dakota
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Aux Sable Midstream on cumulative reported pounds (30.8K lbs) and distinct chemical count (2). Release-pound peers include Rathbone Precision Metals Inc, Itw Evercoat, Fs Precision Technology LLC. Chemical-count peers include Idi Caribe Inc, Suiza Dairy Corp, Edwards Lifesciences Technology Sarl. 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.
- Rathbone Precision Metals Inc Palmer, MA · Primary Metals 30.8K lbs reported
- Itw Evercoat Cincinnati, OH · Chemicals 30.8K lbs reported
- Fs Precision Technology LLC Compton, CA · Primary Metals 30.8K lbs reported
- Allied Aviation Fueling Co of Texas Dfw Airport, TX · Petroleum Bulk Terminals 30.9K 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 n-Hexane, Methanol; nearby reporters include Palermo Product Terminal. Aux Sable Midstream stamps LIGHT volume · AIR pathway · CLEAN 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 Aux Sable Midstream TRI extract (LIGHT · AIR · CLEAN · lead n-Hexane) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Aux Sable Midstream totals are self-reported EPCRA §313 estimates for Palermo, ND, latest year 2023. Form-R rows span 2022–2023 (2 years). NAICS 211130 · Natural Gas Processing. 8.6% of Mountrail TRI pounds in this extract. Nearest ABS peer: Rathbone Precision Metals Inc (Δ 0 lbs). Pounds ≠ exposure.
Aux Sable Midstream stamps LIGHT volume · AIR pathway · CLEAN · lead n-Hexane. 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