EPA TRI Facility · Petroleum
Shell Norco Chemical Plant
Norco, LA · Parent: Shell Oil Co
- Total releases
- 3.6M lbs
- Chemicals reported
- 45
- Carcinogens
- 14
- Primary pathway
- Air Releases
AIR Form-R mix
Shell Norco Chemical Plant: how the 3.6M lbs splits
3.6M lbs across all reported pathways
- Air Releases 3.6M lbs 99.7%
- Water Discharges 8.3K lbs 0.2%
- Land Disposal 1.3K lbs <0.1%
- Off-site Transfers 97 lbs <0.1%
Shell Norco Chemical Plant's 3.6M lbs Form-R total is AIR - air releases is 99.7% of the bar. Next segment: water discharges at 0.2%. Leading chemical by pounds: Propylene.
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.
HEAVY volume AIR pathway CARC-LEAN
Shell Norco Chemical Plant is an EPA Toxics Release Inventory reporter in Norco, LA, in the petroleum sector. It reported 672.7K lbs of releases across 43 chemicals in 2023, and 3.6M lbs in total across its 2019-2023 reporting years. That ranks 551 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. Shell Norco Chemical Plant is pounds #33 and chemical-count #10 at 3.6M 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: Linde St Charles Facility; Rain Cii Carbon LLC; Shell Norco Chemical Plant West Site; Shac Catalyst Plant. Similar-scale Petroleum peers outside Louisiana: Deer Park Refining LP; Premcor Refining Group Inc Port Arthur; Phillips 66 Rodeo Renewable Energy Complex; Flint Hills Resources Pine Bend LLC. Other Shell Oil Co sites in this extract: Shell Norco Chemical Plant West Site; Equilon Stockton Terminal; Sopus Products. Largest disclosed chemicals by pounds: Propylene; Ethylene; Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Toluene.
Shell Norco Chemical Plant stamps HEAVY volume with a dominant AIR pathway (99.7% air releases) across 45 chemicals · 14 carcinogen-classified. Cumulative Form-R extract: 3.6M lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Deer Park Refining LP and Premcor Refining Group Inc Port Arthur.
Shell Norco Chemical Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
3.6M lbs Top 2% higher than 98% 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
Shell Norco Chemical Plant in the Petroleum sector extract
Among the 902 Petroleum facilities in this database, Shell Norco Chemical Plant reports the 29th-largest volume, placing it in the top 3.2% of its sector. Scale peers outside Louisiana include Deer Park Refining LP and Premcor Refining Group Inc Port Arthur.
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
- Shell Norco Chemical Plant's total reported releases rose from 443.5 thousand lb in 2022 to 672.7 thousand lb in 2023, based on EPA TRI filings.
- Shell Norco Chemical Plant's air releases rose from 442.0 thousand lb in 2022 to 671.4 thousand lb in 2023, based on EPA TRI filings.
- Shell Norco Chemical Plant's water releases fell from 1.5 thousand lb in 2022 to 1.2 thousand lb in 2023, based on EPA TRI filings.
Shell Norco Chemical Plant Form-R facts
Compare this facility
See how Shell Norco Chemical Plant stacks up against nearby facilities and the typical reporter.
28.5× more than the comparison
45.0× 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 Shell Norco Chemical Plant releases toxic chemicals into the environment. Total: 3.6M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 19% (825.6K lbs to 672.7K lbs).
Shell Norco Chemical Plant: annual Form-R pounds
HEAVY site · AIR pathway · TRI years 2019–2023
- 2019
- 2020
- 2021
- 2022 0
- 2023
What this shows Shell Norco Chemical Plant year-over-year reported totals (decreased by 19% 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: Propylene.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 825.6K lbs | 42 |
| 2020 | 857.9K lbs | 43 |
| 2021 | 796.2K lbs | 43 |
| 2022 | 443.5K lbs | 43 |
| 2023 | 672.7K lbs | 43 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 14 of 45 chemicals are carcinogens. Sorted by total release volume.
Shell Norco Chemical Plant · AIR-pathway site
Nearest TRI Facilities to Shell Norco Chemical Plant
Closest other reporters in Louisiana - including Linde St Charles Facility, Rain Cii Carbon LLC, Shell Norco Chemical Plant West Site, ordered by distance.
Showing 8 of 416 other reporting facilities in Louisiana.
Similar Petroleum Facilities
Other Petroleum facilities with similar total release volumes (±80%), outside Louisiana - e.g. Deer Park Refining LP, Premcor Refining Group Inc Port Arthur, Phillips 66 Rodeo Renewable Energy Complex.
Compare beyond Louisiana
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Shell Norco Chemical Plant on cumulative reported pounds (3.6M lbs) and distinct chemical count (45). Release-pound peers include Roquette America Inc, Sanderson Farms LLC, Biokyowa Inc. Chemical-count peers include Ash Grove Cement Co, Ash Grove Cement, Chevron Products Co. Div of Chevron USA Inc.. 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).
- Ash Grove Cement Co Chanute, KS · Nonmetallic Mineral Product 45 chemicals
- Ash Grove Cement Foreman, AR · Nonmetallic Mineral Product 45 chemicals
- Chevron Products Co. Div of Chevron USA Inc. El Segundo, CA · Petroleum 45 chemicals
- Clean Harbors Buttonwillow LLC Buttonwillow, CA · Hazardous Waste 45 chemicals
Other Shell Oil Co Facilities
Same-parent TRI sites ranked by reported releases - including Shell Norco Chemical Plant West Site, Equilon Stockton Terminal, Sopus Products.
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 Propylene, Ethylene, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Toluene; nearby reporters include Linde St Charles Facility. Shell Norco Chemical Plant stamps HEAVY 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 Shell Norco Chemical Plant TRI extract (HEAVY · AIR · CARC-LEAN · lead Propylene) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Shell Norco Chemical Plant totals are self-reported EPCRA §313 estimates for Norco, LA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 324110 · Petroleum. 3.5% of St. Charles Parish TRI pounds in this extract. Nearest ABS peer: Roquette America Inc (Δ 2.7K lbs). Pounds ≠ exposure.
Shell Norco Chemical Plant stamps HEAVY volume · AIR pathway · CARC-LEAN · lead Propylene. 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