EPA TRI Facility · Primary Metals
Caterpillar Inc Mapleton Plant
Mapleton, IL · Parent: Caterpillar Inc
- Total releases
- 873.9K lbs
- Chemicals reported
- 13
- Carcinogens
- 3
- Primary pathway
- Land Disposal
MIXED Form-R mix
Caterpillar Inc Mapleton Plant: how the 873.9K lbs splits
873.9K lbs across all reported pathways
- Land Disposal 591.2K lbs 67.6%
- Off-site Transfers 159.1K lbs 18.2%
- Air Releases 122.1K lbs 14.0%
- Water Discharges 1.5K lbs 0.2%
Caterpillar Inc Mapleton Plant's 873.9K lbs Form-R total is MIXED - land disposal is 67.6% of the bar. Next segment: off-site transfers at 18.2%. Leading chemical by pounds: Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region).
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.
MID volume MIXED pathway CARC-LEAN
Caterpillar Inc Mapleton Plant is an EPA Toxics Release Inventory reporter in Mapleton, IL, in the primary metals sector. It reported 40.6K lbs of releases across 9 chemicals in 2023, and 873.9K lbs in total across its 2019-2023 reporting years. That ranks 1,417 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. Caterpillar Inc Mapleton Plant is pounds #56 and chemical-count #52 at 873.9K 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: Arxada LLC; Ingredion; Evonik Corp; Lanxess Corp. Similar-scale Primary Metals peers outside Illinois: Arconic US LLC; Novelis; P Kay Metal Lewiston; Sloan Valve Co. Other Caterpillar Inc sites in this extract: Caterpillar Reman Div; Caterpillar East Peoria; Caterpillar Inc. - High Performance Molded Products; Caterpillar Inc. Largest disclosed chemicals by pounds: Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region); Diisocyanates; Phenol; Chromium compounds (except for chromite ore mined in the Transvaal Region).
Caterpillar Inc Mapleton Plant is a MID · MIXED-pathway Form-R site in Mapleton, IL: 873.9K lbs across 13 chemicals (3 carcinogen-classified, CARC-LEAN). No single media clears 70% of the bar (lead segment land disposal at 67.6%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Arconic US LLC and Novelis.
Caterpillar Inc Mapleton Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
874K lbs Top 5% higher than 95% 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
Caterpillar Inc Mapleton Plant: Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)-led volume
Among the 1,603 Primary Metals facilities in this database, Caterpillar Inc Mapleton Plant reports the 155th-largest volume, placing it in the top 9.7% of its sector. Its reported volume is concentrated rather than spread: Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) alone is 60.1% of the total. Scale peers outside Illinois include Arconic US LLC and Novelis.
Concentrated means ≥60% of Caterpillar Inc Mapleton Plant's pounds in one chemical - here Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) at 60.1%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Caterpillar Inc Mapleton Plant's total reported releases fell from 397.3 thousand lb in 2022 to 40.6 thousand lb in 2023, based on EPA TRI filings.
- Caterpillar Inc Mapleton Plant's air releases rose from 14.7 thousand lb in 2022 to 36.9 thousand lb in 2023, based on EPA TRI filings.
- Caterpillar Inc Mapleton Plant's off-site transfers fell from 122.2 thousand lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
- Caterpillar Inc Mapleton Plant's land releases fell from 260.0 thousand lb in 2022 to 3.3 thousand lb in 2023, based on EPA TRI filings.
Caterpillar Inc Mapleton Plant Form-R facts
Compare this facility
See how Caterpillar Inc Mapleton Plant stacks up against nearby facilities and the typical reporter.
5.2× more than the comparison
86% 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 Caterpillar Inc Mapleton Plant releases toxic chemicals into the environment. Total: 873.9K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 76% (170.9K lbs to 40.6K lbs).
Caterpillar Inc Mapleton Plant: annual Form-R pounds
MID site · MIXED pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Caterpillar Inc Mapleton Plant year-over-year reported totals (decreased by 76% 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: Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 170.9K lbs | 10 |
| 2020 | 78.0K lbs | 10 |
| 2021 | 187.2K lbs | 10 |
| 2022 | 397.3K lbs | 9 |
| 2023 | 40.6K lbs | 9 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 3 of 13 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 525.0K lbs | - |
| Diisocyanates | 138.8K lbs | - |
| Phenol | 100.1K lbs | - |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 53.1K lbs | - |
| Triethylamine | 29.8K lbs | - |
| Naphthalene | 23.6K lbs | Carcinogen |
| Chlorine | 1.1K lbs | - |
| Manganese | 901 lbs | - |
| Copper | 868 lbs | - |
| Lead | 667 lbs | Carcinogen |
| Nickel | 81 lbs | Carcinogen |
| Chromium | 0 lbs | - |
| N-Methyl-2-pyrrolidone | 0 lbs | - |
Caterpillar Inc Mapleton Plant in Peoria
Nearest TRI Facilities to Caterpillar Inc Mapleton Plant
Closest other reporters in Illinois - including Arxada LLC, Ingredion, Evonik Corp, ordered by distance.
Showing 8 of 950 other reporting facilities in Illinois.
Similar Primary Metals Facilities
Other Primary Metals facilities with similar total release volumes (±80%), outside Illinois - e.g. Arconic US LLC, Novelis, P Kay Metal Lewiston.
Compare beyond Illinois
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Caterpillar Inc Mapleton Plant on cumulative reported pounds (873.9K lbs) and distinct chemical count (13). Release-pound peers include The Andersons Inc - Sioux City, Ppg Protective & Marine Coat Ings, Okeechobee Clean Energy Center. Chemical-count peers include Puerto Rico Energy LLC - Guaynabo 2 Terminal, Global Companies LLC, Shell Providence Terminal. 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.
- The Andersons Inc - Sioux City Sioux City, IA · Chemicals 870.0K lbs reported
- Ppg Protective & Marine Coat Ings Alexander, AR · Chemicals 869.8K lbs reported
- Okeechobee Clean Energy Center Okeechobee, FL · Electric Utilities 879.5K lbs reported
- Clover Power Station Clover, VA · Electric Utilities 867.0K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Puerto Rico Energy LLC - Guaynabo 2 Terminal Guaynabo, PR · Petroleum Bulk Terminals 13 chemicals
- Global Companies LLC Revere, MA · Petroleum Bulk Terminals 13 chemicals
- Shell Providence Terminal Providence, RI · Petroleum Bulk Terminals 13 chemicals
- Sig Sauer Inc Newington, NH · Fabricated Metals 13 chemicals
Other Caterpillar Inc Facilities
Same-parent TRI sites ranked by reported releases - including Caterpillar Reman Div, Caterpillar East Peoria, Caterpillar Inc. - High Performance Molded 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 Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), Diisocyanates, Phenol, Chromium compounds (except for chromite ore mined in the Transvaal Region); nearby reporters include Arxada LLC. Caterpillar Inc Mapleton Plant stamps MID 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 Caterpillar Inc Mapleton Plant TRI extract (MID · MIXED · CARC-LEAN · lead Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Caterpillar Inc Mapleton Plant totals are self-reported EPCRA §313 estimates for Mapleton, IL, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 331511 · Primary Metals. 3.2% of Peoria TRI pounds in this extract. Nearest ABS peer: W R Grace & Co (Δ 759 lbs). Pounds ≠ exposure.
Caterpillar Inc Mapleton Plant stamps MID · MIXED pathway (land disposal leads at 67.6%). 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