EPA TRI Facility · Natural Gas Processing
Enterprise Gas Processing LLC - Neptune Gas Plant
Centerville, LA · Parent: Enterprise Products Operating LLC
- Total releases
- 4.5K lbs
- Chemicals reported
- 4
- Carcinogens
- 2
- Primary pathway
- Air Releases
AIR Form-R mix
Enterprise Gas Processing LLC - Neptune Gas Plant: how the 4.5K lbs splits
4.5K lbs across all reported pathways
- Air Releases 4.4K lbs 98.6%
- Off-site Transfers 63 lbs 1.4%
Enterprise Gas Processing LLC - Neptune Gas Plant's 4.5K lbs Form-R total is AIR - air releases is 98.6% of the bar. Next segment: off-site transfers at 1.4%. 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 CARC-LEAN
Enterprise Gas Processing LLC - Neptune Gas Plant is an EPA Toxics Release Inventory reporter in Centerville, LA, in the natural gas processing sector. It reported 2.7K lbs of releases across 2 chemicals in 2023, and 4.5K lbs in total across its 2022-2023 reporting years. That ranks 11,406 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Louisiana's 417 reporting TRI sites, pounds #1 is not chemical-count #1. Enterprise Gas Processing LLC - Neptune Gas Plant is pounds #291 and chemical-count #232 at 4.5K lbs. Bayer Cropscience LP leads reported pounds (81.9M lbs) at 17 chemicals (chemical-count #52). Eco-Services Operations leads chemical count at 68 chemicals (163.5K lbs, pounds #136). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: D & D Welding/fab Inc.; Cabot Corp Canal Plant; Birla Carbon USA Inc; Pelican Processing Plant. Similar-scale Natural Gas Processing peers outside Louisiana: Hobbs Fractionation Plant; Keenesburg Gas Plant; Smithburg Gas Plant; Red Lake Gas Plant. Other Enterprise Products Operating LLC sites in this extract: Enterprise Products Operating LLC; Chaco Gas Plant; East Storage / Splitter III Facility; Enterprise Products Operating LLC Baton Rouge Fractionator. Largest disclosed chemicals by pounds: n-Hexane; Benzene; Toluene; Ethylbenzene.
Enterprise Gas Processing LLC - Neptune Gas Plant stamps LIGHT volume with a dominant AIR pathway (98.6% air releases) across 4 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 4.5K lbs (2022–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Hobbs Fractionation Plant and Keenesburg Gas Plant.
Enterprise Gas Processing LLC - Neptune Gas Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
4.5K 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
Enterprise Gas Processing LLC - Neptune Gas Plant: n-Hexane-led volume
Among the 339 Natural Gas Processing facilities in this database, Enterprise Gas Processing LLC - Neptune Gas Plant reports the 275th-largest volume (4.5K lbs). Its reported volume is concentrated rather than spread: n-Hexane alone is 92.7% of the total. Scale peers outside Louisiana include Hobbs Fractionation Plant and Keenesburg Gas Plant.
Concentrated means ≥60% of Enterprise Gas Processing LLC - Neptune Gas Plant's pounds in one chemical - here n-Hexane at 92.7%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Enterprise Gas Processing LLC - Neptune Gas Plant's total reported releases rose from 1.8 thousand lb in 2022 to 2.7 thousand lb in 2023, based on EPA TRI filings.
- Enterprise Gas Processing LLC - Neptune Gas Plant's off-site transfers fell from 50 lb in 2022 to 14 lb in 2023, based on EPA TRI filings.
- Enterprise Gas Processing LLC - Neptune Gas Plant's chemicals reported fell from 4 in 2022 to 2 in 2023, based on EPA TRI filings.
- Enterprise Gas Processing LLC - Neptune Gas Plant's air releases rose from 1.8 thousand lb in 2022 to 2.6 thousand lb in 2023, based on EPA TRI filings.
Enterprise Gas Processing LLC - Neptune Gas Plant Form-R facts
Compare this facility
See how Enterprise Gas Processing LLC - Neptune Gas Plant stacks up against nearby facilities and the typical reporter.
18619.0× more than the comparison
2.0× 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 Enterprise Gas Processing LLC - Neptune Gas Plant releases toxic chemicals into the environment. Total: 4.5K lbs.
Emissions Trend Summary
From 2022 to 2023, total releases increased by 46% (1.8K lbs to 2.7K lbs).
Enterprise Gas Processing LLC - Neptune Gas Plant: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2022–2023
- 2022 0
- 2023 0
What this shows Enterprise Gas Processing LLC - Neptune Gas Plant year-over-year reported totals (increased by 46% 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 | 1.8K lbs | 4 |
| 2023 | 2.7K lbs | 2 |
Chemical Releases
Aggregated across all reporting years (2022–2023). 2 of 4 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| n-Hexane | 4.1K lbs | - |
| Benzene | 328 lbs | Carcinogen |
| Toluene | 0 lbs | - |
| Ethylbenzene | 0 lbs | Carcinogen |
Enterprise Gas Processing LLC - Neptune Gas Plant · AIR-pathway site
Nearest TRI Facilities to Enterprise Gas Processing LLC - Neptune Gas Plant
Closest other reporters in Louisiana - including D & D Welding/fab Inc., Cabot Corp Canal Plant, Birla Carbon USA Inc, ordered by distance.
Showing 8 of 416 other reporting facilities in Louisiana.
Similar Natural Gas Processing Facilities
Other Natural Gas Processing facilities with similar total release volumes (±80%), outside Louisiana - e.g. Hobbs Fractionation Plant, Keenesburg Gas Plant, Smithburg Gas Plant.
Compare beyond Louisiana
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Enterprise Gas Processing LLC - Neptune Gas Plant on cumulative reported pounds (4.5K lbs) and distinct chemical count (4). Release-pound peers include Deitsch Plastic Co Inc., Decoart Inc, Senergy Petroleum LLC - Albuquerque Bulk Plant. Chemical-count peers include Hamilton Sundstrand de Puerto Rico Inc., Abb Installation Products Caribe LLC, Solenis 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.
- Deitsch Plastic Co Inc. West Haven, CT · Textiles 4.5K lbs reported
- Decoart Inc Stanford, KY · Chemicals 4.5K lbs reported
- Senergy Petroleum LLC - Albuquerque Bulk Plant Albuquerque, NM · Petroleum Bulk Terminals 4.5K lbs reported
- Concrete Supply Omaha, NE · Nonmetallic Mineral Product 4.5K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Hamilton Sundstrand de Puerto Rico Inc. Santa Isabel, PR · Transportation Equipment 4 chemicals
- Abb Installation Products Caribe LLC Vega Baja, PR · Electrical Equipment 4 chemicals
- Solenis LLC Chicopee, MA · Chemicals 4 chemicals
- Adhesive Applications Inc. - O'Neill St Easthampton Easthampton, MA · Miscellaneous Manufacturing 4 chemicals
Other Enterprise Products Operating LLC Facilities
Same-parent TRI sites ranked by reported releases - including Enterprise Products Operating LLC, Chaco Gas Plant, East Storage / Splitter III Facility.
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, Ethylbenzene; nearby reporters include D & D Welding/fab Inc.. Enterprise Gas Processing LLC - Neptune Gas Plant stamps LIGHT 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 Enterprise Gas Processing LLC - Neptune Gas Plant TRI extract (LIGHT · AIR · CARC-LEAN · lead n-Hexane) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Enterprise Gas Processing LLC - Neptune Gas Plant totals are self-reported EPCRA §313 estimates for Centerville, LA, latest year 2023. Form-R rows span 2022–2023 (2 years). NAICS 211130 · Natural Gas Processing. 0.1% of St. Mary Parish TRI pounds in this extract. Nearest ABS peer: Deitsch Plastic Co Inc. (Δ 0 lbs). Pounds ≠ exposure.
Enterprise Gas Processing LLC - Neptune Gas Plant stamps LIGHT volume · AIR pathway · CARC-LEAN · 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