EPA TRI Facility · Natural Gas Processing
Smithburg Gas Plant
West Union, WV · Parent: Marathon Petroleum Corp
- Total releases
- 4.2K lbs
- Chemicals reported
- 5
- Carcinogens
- 2
- Primary pathway
- Air Releases
AIR Form-R mix
Smithburg Gas Plant: how the 4.2K lbs splits
4.2K lbs across all reported pathways
- Air Releases 4.2K lbs 100.0%
Smithburg Gas Plant's 4.2K 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.
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.
LIGHT volume AIR pathway TRACE-CARC
Smithburg Gas Plant is an EPA Toxics Release Inventory reporter in West Union, WV, in the natural gas processing sector. It reported 3.0K lbs of releases across 5 chemicals in 2023, and 4.2K lbs in total across its 2022-2023 reporting years. That ranks 11,513 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In West Virginia's 182 reporting TRI sites, pounds #1 is not chemical-count #1. Smithburg Gas Plant is pounds #115 and chemical-count #62 at 4.2K lbs. Harrison Power Station leads reported pounds (32.5M lbs) at 29 chemicals (chemical-count #2). Mount Storm Power Station leads chemical count at 31 chemicals (5.6M lbs, pounds #7). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Sherwood Plant; Allegheny Wood Products Inc. Mill #11; Skana Aluminum Co; Lightburn Extraction Plant. Similar-scale Natural Gas Processing peers outside West Virginia: Red Lake Gas Plant; Hobbs Fractionation Plant; Enterprise Gas Processing LLC - Neptune Gas Plant; Rosewood Dew Point. 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: n-Hexane; Benzene; Toluene; 1,3-Butadiene.
Smithburg Gas Plant stamps LIGHT volume with a dominant AIR pathway (100.0% air releases) across 5 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 4.2K lbs (2022–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Red Lake Gas Plant and Hobbs Fractionation Plant.
Smithburg Gas Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
4.2K lbs Top 44% higher than 56% 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
Smithburg Gas Plant: n-Hexane-led volume
Among the 339 Natural Gas Processing facilities in this database, Smithburg Gas Plant reports the 277th-largest volume (4.2K lbs). Its reported volume is concentrated rather than spread: n-Hexane alone is 99.8% of the total. Scale peers outside West Virginia include Red Lake Gas Plant and Hobbs Fractionation Plant.
Concentrated means ≥60% of Smithburg Gas Plant's pounds in one chemical - here n-Hexane at 99.8%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Smithburg Gas Plant's total reported releases rose from 1.2 thousand lb in 2022 to 3.0 thousand lb in 2023, based on EPA TRI filings.
- Smithburg Gas Plant's air releases rose from 1.2 thousand lb in 2022 to 3.0 thousand lb in 2023, based on EPA TRI filings.
- Smithburg Gas Plant's chemicals reported rose from 3 in 2022 to 5 in 2023, based on EPA TRI filings.
Smithburg Gas Plant Form-R facts
Compare this facility
See how Smithburg Gas Plant stacks up against nearby facilities and the typical reporter.
73% less than the comparison
25% 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 Smithburg Gas Plant releases toxic chemicals into the environment. Total: 4.2K lbs.
Emissions Trend Summary
From 2022 to 2023, total releases increased by 148% (1.2K lbs to 3.0K lbs).
Smithburg Gas Plant: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2022–2023
- 2022 0
- 2023 0
What this shows Smithburg Gas Plant year-over-year reported totals (increased by 148% 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 | 1.2K lbs | 3 |
| 2023 | 3.0K lbs | 5 |
Chemical Releases
Aggregated across all reporting years (2022–2023). 2 of 5 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| n-Hexane | 4.2K lbs | - |
| Benzene | 6 lbs | Carcinogen |
| Toluene | 4 lbs | - |
| 1,3-Butadiene | 0 lbs | Carcinogen |
| Ethylene | 0 lbs | - |
Smithburg Gas Plant · AIR-pathway site
Nearest TRI Facilities to Smithburg Gas Plant
Closest other reporters in West Virginia - including Sherwood Plant, Allegheny Wood Products Inc. Mill #11, Skana Aluminum Co, ordered by distance.
Showing 8 of 181 other reporting facilities in West Virginia.
Similar Natural Gas Processing Facilities
Other Natural Gas Processing facilities with similar total release volumes (±80%), outside West Virginia - e.g. Red Lake Gas Plant, Hobbs Fractionation Plant, Enterprise Gas Processing LLC - Neptune Gas Plant.
Compare beyond West Virginia
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Smithburg Gas Plant on cumulative reported pounds (4.2K lbs) and distinct chemical count (5). Release-pound peers include Sun Coast Resources LLC, Mexichem Specialty Compounds, Newport Biodiesel Inc. Chemical-count peers include Abbvie Ltd, Lilly del Caribe Inc Carolin A, Baxter Healthcare of Puerto Rico 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.
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 n-Hexane, Benzene, Toluene, 1,3-Butadiene; nearby reporters include Sherwood Plant. Smithburg Gas Plant stamps LIGHT volume · AIR pathway · TRACE-CARC 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 Smithburg Gas Plant TRI extract (LIGHT · AIR · TRACE-CARC · lead n-Hexane) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Smithburg Gas Plant totals are self-reported EPCRA §313 estimates for West Union, WV, latest year 2023. Form-R rows span 2022–2023 (2 years). NAICS 211130 · Natural Gas Processing. 21.1% of Doddridge TRI pounds in this extract. Nearest ABS peer: Sun Coast Resources LLC (Δ 3 lbs). Pounds ≠ exposure.
Smithburg Gas Plant stamps LIGHT volume · AIR pathway · TRACE-CARC · 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