EPA TRI Facility · Chemicals
Stepan Co Millsdale Road
Elwood, IL · Parent: Stepan Co
- Total releases
- 2.6M lbs
- Chemicals reported
- 25
- Carcinogens
- 7
- Primary pathway
- Air Releases
MIXED Form-R mix
Stepan Co Millsdale Road: how the 2.6M lbs splits
2.6M lbs across all reported pathways
- Air Releases 1.6M lbs 63.3%
- Off-site Transfers 748.9K lbs 29.3%
- Water Discharges 190.8K lbs 7.5%
Stepan Co Millsdale Road's 2.6M lbs Form-R total is MIXED - air releases is 63.3% of the bar. Next segment: off-site transfers at 29.3%. Leading chemical by pounds: Methanol.
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 MIXED pathway CARC-LEAN
Stepan Co Millsdale Road is an EPA Toxics Release Inventory reporter in Elwood, IL, in the chemicals sector. It reported 208.8K lbs of releases across 23 chemicals in 2023, and 2.6M lbs in total across its 2019-2023 reporting years. That ranks 724 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Illinois's 951 reporting TRI sites, pounds #1 is not chemical-count #1. Stepan Co Millsdale Road is pounds #28 and chemical-count #9 at 2.6M lbs. Prairie State Generating Co leads reported pounds (37.9M lbs) at 31 chemicals (chemical-count #8). Veolia N.a. Inc. leads chemical count at 141 chemicals (1.9M lbs, pounds #34). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Vcna Prairie LLC - Yard 818/PORT of Will County; Laraway Recycling & Disposal Facility; Exxonmobil Oil Corp Joliet Refinery; Americas Styrenics LLC - Joliet Site. Similar-scale Chemicals peers outside Illinois: Occidental Chemical Corp Luling; Mosaic Fertilizer Llc-Bartow; Cabot Corp Canal Plant; Chemours Louisville Plant. Other Stepan Co sites in this extract: Stepan Co; Stepan Co; Stepan Co Maywood; Stepan Co. Largest disclosed chemicals by pounds: Methanol; Phthalic anhydride; Maleic anhydride; Nitrate compounds (water dissociable; reportable only when in aqueous solution).
Stepan Co Millsdale Road is a HEAVY · MIXED-pathway Form-R site in Elwood, IL: 2.6M lbs across 25 chemicals (7 carcinogen-classified, CARC-LEAN). No single media clears 70% of the bar (lead segment air releases at 63.3%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Occidental Chemical Corp Luling and Mosaic Fertilizer Llc-Bartow.
Stepan Co Millsdale Road vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
2.6M lbs Top 3% higher than 97% 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
Stepan Co Millsdale Road in the Chemicals sector extract
Among the 3,917 Chemicals facilities in this database, Stepan Co Millsdale Road reports the 137th-largest volume, placing it in the top 3.5% of its sector. Scale peers outside Illinois include Occidental Chemical Corp Luling and Mosaic Fertilizer Llc-Bartow.
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
- Stepan Co Millsdale Road's total reported releases fell from 280.9 thousand lb in 2022 to 208.8 thousand lb in 2023, based on EPA TRI filings.
- Stepan Co Millsdale Road's water releases fell from 41.7 thousand lb in 2022 to 7.4 thousand lb in 2023, based on EPA TRI filings.
- Stepan Co Millsdale Road's off-site transfers fell from 5.3 thousand lb in 2022 to 2.9 thousand lb in 2023, based on EPA TRI filings.
- Stepan Co Millsdale Road's air releases fell from 233.9 thousand lb in 2022 to 198.5 thousand lb in 2023, based on EPA TRI filings.
Stepan Co Millsdale Road Form-R facts
Compare this facility
See how Stepan Co Millsdale Road stacks up against nearby facilities and the typical reporter.
28594158.5× more than the comparison
12.5× 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 Stepan Co Millsdale Road releases toxic chemicals into the environment. Total: 2.6M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 84% (1.3M lbs to 208.8K lbs).
Stepan Co Millsdale Road: annual Form-R pounds
HEAVY site · MIXED pathway · TRI years 2019–2023
- 2019
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Stepan Co Millsdale Road year-over-year reported totals (decreased by 84% 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: Methanol.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 1.3M lbs | 23 |
| 2020 | 472.4K lbs | 25 |
| 2021 | 326.5K lbs | 24 |
| 2022 | 280.9K lbs | 23 |
| 2023 | 208.8K lbs | 23 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 7 of 25 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Methanol | 1.3M lbs | - |
| Phthalic anhydride | 407.6K lbs | - |
| Maleic anhydride | 232.7K lbs | - |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 158.2K lbs | - |
| 1,4-Dioxane | 105.6K lbs | Carcinogen |
| Xylene (mixed isomers) | 67.9K lbs | - |
| Acetaldehyde | 56.4K lbs | Carcinogen |
| n-Butyl alcohol | 49.3K lbs | - |
| Ammonia | 49.3K lbs | - |
| o-Xylene | 38.3K lbs | - |
| Ethylene glycol | 24.8K lbs | - |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 9.5K lbs | - |
| Dimethyl sulfate | 8.4K lbs | Carcinogen |
| Chloroacetic acid | 6.1K lbs | - |
| Certain glycol ethers | 5.6K lbs | - |
| Diethanolamine | 3.8K lbs | - |
| Biphenyl | 3.8K lbs | - |
| Ethylbenzene | 2.8K lbs | Carcinogen |
| Benzyl chloride | 2.3K lbs | - |
| Ethylene oxide | 1.4K lbs | Carcinogen |
| Naphthalene | 1.4K lbs | Carcinogen |
| Propylene oxide | 664 lbs | Carcinogen |
| 1,2,4-Trimethylbenzene | 98 lbs | - |
| Nonylphenol | 2 lbs | - |
| Nonylphenol Ethoxylates | 0 lbs | - |
Stepan Co Millsdale Road in Will
Nearest TRI Facilities to Stepan Co Millsdale Road
Closest other reporters in Illinois - including Vcna Prairie LLC - Yard 818/PORT of Will County, Laraway Recycling & Disposal Facility, Exxonmobil Oil Corp Joliet Refinery, ordered by distance.
Showing 8 of 950 other reporting facilities in Illinois.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside Illinois - e.g. Occidental Chemical Corp Luling, Mosaic Fertilizer Llc-Bartow, Cabot Corp Canal Plant.
Compare beyond Illinois
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Stepan Co Millsdale Road on cumulative reported pounds (2.6M lbs) and distinct chemical count (25). Release-pound peers include Cosmo Specialty Fibers Inc., Charlotte Pipe & Foundry Co, Occidental Chemical Corp Luling. Chemical-count peers include Aes Puerto Rico LP, Verso Luke LLC, Virginia City Hybrid Energy Center. 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 Stepan Co Facilities
Same-parent TRI sites ranked by reported releases - including Stepan Co, Stepan Co, Stepan Co Maywood.
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 Methanol, Phthalic anhydride, Maleic anhydride, Nitrate compounds (water dissociable; reportable only when in aqueous solution); nearby reporters include Vcna Prairie LLC - Yard 818/PORT of Will County. Stepan Co Millsdale Road stamps HEAVY volume · MIXED 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 Stepan Co Millsdale Road TRI extract (HEAVY · MIXED · CARC-LEAN · lead Methanol) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Stepan Co Millsdale Road totals are self-reported EPCRA §313 estimates for Elwood, IL, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325613 · Chemicals. 16.4% of Will TRI pounds in this extract. Nearest ABS peer: Cosmo Specialty Fibers Inc. (Δ 2.3K lbs). Pounds ≠ exposure.
Stepan Co Millsdale Road stamps HEAVY · MIXED pathway (air releases leads at 63.3%). Pipeline-rendered EPA Form-R only - no editor-typed pounds. 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