EPA TRI Facility · Natural Gas Processing
Bluestone Gas Plant
Evans City, PA · Parent: Marathon Petroleum Corp
- Total releases
- 18.9K lbs
- Chemicals reported
- 5
- Carcinogens
- 2
- Primary pathway
- Air Releases
AIR Form-R mix
Bluestone Gas Plant: how the 27.2K lbs splits
27.2K lbs across all reported pathways
- Air Releases 27.2K lbs 100.0%
Bluestone Gas Plant's 27.2K 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
Bluestone Gas Plant is an EPA Toxics Release Inventory reporter in Evans City, PA, in the natural gas processing sector. It reported 8.3K lbs of releases across 4 chemicals in 2024, and 18.9K lbs in total across its 2022-2024 reporting years. That ranks 8,367 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Pennsylvania's 1,010 reporting TRI sites, pounds #1 is not chemical-count #1. Bluestone Gas Plant is pounds #365 and chemical-count #259 at 18.9K lbs. Max Environmental -- Yukon Facility leads reported pounds (34.8M lbs) at 18 chemicals (chemical-count #24). Keystone Cement Co leads chemical count at 53 chemicals (155.4K lbs, pounds #149). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Advanced Polymer Technology; Berry Metal Co; Markwest Liberty Bluestone Llc/sarsen Gas Proc Plt; Main Steel Polishing Co.. Similar-scale Natural Gas Processing peers outside Pennsylvania: Little Missouri Gas Plant; Williams Harrison Hub Fractionation Plant (0634005028); Pecos Gas Processing Plant; Wild Basin Gas Processing &crude Handling Facility. 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; Cyclohexane; Ethylene.
Bluestone Gas Plant stamps LIGHT volume with a dominant AIR pathway (100.0% air releases) across 5 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 18.9K lbs (2022–2024). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Little Missouri Gas Plant and Williams Harrison Hub Fractionation Plant (0634005028).
Bluestone Gas Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
19K lbs Top 32% higher than 68% 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
Bluestone Gas Plant: n-Hexane-led volume
Among the 339 Natural Gas Processing facilities in this database, Bluestone Gas Plant reports the 178th-largest volume (18.9K lbs). Its reported volume is concentrated rather than spread: n-Hexane alone is 99.3% of the total. Scale peers outside Pennsylvania include Little Missouri Gas Plant and Williams Harrison Hub Fractionation Plant (0634005028).
Concentrated means ≥60% of Bluestone Gas Plant's pounds in one chemical - here n-Hexane at 99.3%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Bluestone Gas Plant's total reported releases fell from 11.0 thousand lb in 2022 to 7.9 thousand lb in 2023, based on EPA TRI filings.
- Bluestone Gas Plant's air releases fell from 11.0 thousand lb in 2022 to 7.9 thousand lb in 2023, based on EPA TRI filings.
Bluestone Gas Plant Form-R facts
Compare this facility
See how Bluestone Gas Plant stacks up against nearby facilities and the typical reporter.
97% less than the comparison
44% 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 Bluestone Gas Plant releases toxic chemicals into the environment. Total: 27.2K lbs.
Emissions Trend Summary
From 2022 to 2024, total releases decreased by 24% (11.0K lbs to 8.3K lbs).
Bluestone Gas Plant: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2022–2024
- 2022 0
- 2023 0
- 2024 0
What this shows Bluestone Gas Plant year-over-year reported totals (decreased by 24% from 2022 to 2024). 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 | 11.0K lbs | 4 |
| 2023 | 7.9K lbs | 4 |
| 2024 | 8.3K lbs | 4 |
Chemical Releases
Aggregated across all reporting years (2022–2024). 2 of 5 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| n-Hexane | 27.0K lbs | - |
| Benzene | 203 lbs | Carcinogen |
| Cyclohexane | 0 lbs | - |
| Ethylene | 0 lbs | - |
| 1,3-Butadiene | 0 lbs | Carcinogen |
Bluestone Gas Plant · AIR-pathway site
Nearest TRI Facilities to Bluestone Gas Plant
Closest other reporters in Pennsylvania - including Advanced Polymer Technology, Berry Metal Co, Markwest Liberty Bluestone Llc/sarsen Gas Proc Plt, ordered by distance.
Showing 8 of 1,009 other reporting facilities in Pennsylvania.
Similar Natural Gas Processing Facilities
Other Natural Gas Processing facilities with similar total release volumes (±80%), outside Pennsylvania - e.g. Little Missouri Gas Plant, Williams Harrison Hub Fractionation Plant (0634005028), Pecos Gas Processing Plant.
Compare beyond Pennsylvania
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Bluestone Gas Plant on cumulative reported pounds (18.9K lbs) and distinct chemical count (5). Release-pound peers include Synthomer USA LLC, Polyventive 140 Executive Drive, Kohler Co. Casa Grande. 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, Cyclohexane, Ethylene; nearby reporters include Advanced Polymer Technology. Bluestone 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 Bluestone 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.
Bluestone Gas Plant totals are self-reported EPCRA §313 estimates for Evans City, PA, latest year 2023. Form-R rows span 2022–2024 (3 years). NAICS 211130 · Natural Gas Processing. 0.1% of Butler TRI pounds in this extract. Nearest ABS peer: Synthomer USA LLC (Δ 5 lbs). Pounds ≠ exposure.
Bluestone 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