EPA TRI Facility · Petroleum Bulk Terminals
Mplx Terminals LLC - Mt Prospect Il Terminal
Arlington Heights, IL · Parent: Marathon Petroleum Corp
- Total releases
- 4.3K lbs
- Chemicals reported
- 11
- Carcinogens
- 5
- Primary pathway
- Air Releases
AIR Form-R mix
Mplx Terminals LLC - Mt Prospect Il Terminal: how the 4.3K lbs splits
4.3K lbs across all reported pathways
- Air Releases 4.2K lbs 96.8%
- Off-site Transfers 137 lbs 3.2%
Mplx Terminals LLC - Mt Prospect Il Terminal's 4.3K lbs Form-R total is AIR - air releases is 96.8% of the bar. Next segment: off-site transfers at 3.2%. 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
Mplx Terminals LLC - Mt Prospect Il Terminal is an EPA Toxics Release Inventory reporter in Arlington Heights, IL, in the petroleum bulk terminals sector. It reported 1.9K lbs of releases across 11 chemicals in 2020, and 4.3K lbs in total across its 2019-2020 reporting years. That ranks 11,455 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. Mplx Terminals LLC - Mt Prospect Il Terminal is pounds #511 and chemical-count #82 at 4.3K 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). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Sun Process Converting Co; Acme Finishing Co LLC; Arc-Tronics Inc; Thunderbird Metals. Similar-scale Petroleum Bulk Terminals peers outside Illinois: Citgo Fairfax Terminal; Mplx Terminals LLC - Doraville Ga Terminal; Valero Taylor Terminal; Western Marketing Inc.. 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; Toluene; Benzene; Xylene (mixed isomers).
Mplx Terminals LLC - Mt Prospect Il Terminal stamps LIGHT volume with a dominant AIR pathway (96.8% air releases) across 11 chemicals · 5 carcinogen-classified. Cumulative Form-R extract: 4.3K lbs (2019–2020). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Citgo Fairfax Terminal and Mplx Terminals LLC - Doraville Ga Terminal.
Mplx Terminals LLC - Mt Prospect Il Terminal vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
4.3K 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
Mplx Terminals LLC - Mt Prospect Il Terminal in the Petroleum Bulk Terminals sector extract
Among the 695 Petroleum Bulk Terminals facilities in this database, Mplx Terminals LLC - Mt Prospect Il Terminal reports the 286th-largest volume (4.3K lbs). Scale peers outside Illinois include Citgo Fairfax Terminal and Mplx Terminals LLC - Doraville Ga Terminal.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Mplx Terminals LLC - Mt Prospect Il Terminal Form-R facts
Compare this facility
See how Mplx Terminals LLC - Mt Prospect Il Terminal stacks up against nearby facilities and the typical reporter.
34% more than the comparison
11.0× 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 Mplx Terminals LLC - Mt Prospect Il Terminal releases toxic chemicals into the environment. Total: 4.3K lbs.
Emissions Trend Summary
From 2019 to 2020, total releases decreased by 19% (2.4K lbs to 1.9K lbs).
Mplx Terminals LLC - Mt Prospect Il Terminal: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2019–2020
- 2019 0
- 2020 0
What this shows Mplx Terminals LLC - Mt Prospect Il Terminal year-over-year reported totals (decreased by 19% from 2019 to 2020). 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 |
|---|---|---|
| 2019 | 2.4K lbs | 11 |
| 2020 | 1.9K lbs | 11 |
Chemical Releases
Aggregated across all reporting years (2019–2020). 5 of 11 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| n-Hexane | 1.4K lbs | - |
| Toluene | 1.1K lbs | - |
| Benzene | 755 lbs | Carcinogen |
| Xylene (mixed isomers) | 529 lbs | - |
| Cyclohexane | 418 lbs | - |
| Ethylbenzene | 100 lbs | Carcinogen |
| Naphthalene | 20 lbs | Carcinogen |
| 1,2,4-Trimethylbenzene | 13 lbs | - |
| Cumene | 13 lbs | Carcinogen |
| Polycyclic aromatic compounds | 0 lbs | Carcinogen |
| Benzo[g,h,i]perylene | 0 lbs | - |
Mplx Terminals LLC - Mt Prospect Il Terminal · AIR-pathway site
Nearest TRI Facilities to Mplx Terminals LLC - Mt Prospect Il Terminal
Closest other reporters in Illinois - including Sun Process Converting Co, Acme Finishing Co LLC, Arc-Tronics Inc, ordered by distance.
Showing 8 of 950 other reporting facilities in Illinois.
Similar Petroleum Bulk Terminals Facilities
Other Petroleum Bulk Terminals facilities with similar total release volumes (±80%), outside Illinois - e.g. Citgo Fairfax Terminal, Mplx Terminals LLC - Doraville Ga Terminal, Valero Taylor Terminal.
Compare beyond Illinois
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Mplx Terminals LLC - Mt Prospect Il Terminal on cumulative reported pounds (4.3K lbs) and distinct chemical count (11). Release-pound peers include Republic Steel - Massillon Plant, Sumitomo Bakelite N.a. Inc, Rsa Microtech LLC. Chemical-count peers include Puerto Rico Energy LLC - Bayamon Terminal, Lanco Manufacturing Corp, Buckeye Caribbean Terminals LLC (former Scyi). 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.
- Republic Steel - Massillon Plant Massillon, OH · Primary Metals 4.3K lbs reported
- Sumitomo Bakelite N.a. Inc Manchester, CT · Chemicals 4.3K lbs reported
- Rsa Microtech LLC Dodge City, KS · Chemicals 4.3K lbs reported
- Huntington Alloys Corp Special Metals Welding Products Newton, NC · Primary Metals 4.3K 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 - Bayamon Terminal Bayamon, PR · Petroleum Bulk Terminals 11 chemicals
- Lanco Manufacturing Corp San Lorenzo, PR · Chemicals 11 chemicals
- Buckeye Caribbean Terminals LLC (former Scyi) Yabucoa, PR · Petroleum Bulk Terminals 11 chemicals
- Limetree Bay Terminals LLC DBA Ocean Point Terminals Christiansted, VI · Petroleum Bulk Terminals 11 chemicals
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, Toluene, Benzene, Xylene (mixed isomers); nearby reporters include Sun Process Converting Co. Mplx Terminals LLC - Mt Prospect Il Terminal 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 Mplx Terminals LLC - Mt Prospect Il Terminal TRI extract (LIGHT · AIR · CARC-LEAN · lead n-Hexane) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Mplx Terminals LLC - Mt Prospect Il Terminal totals are self-reported EPCRA §313 estimates for Arlington Heights, IL, latest year 2020. Form-R rows span 2019–2020 (2 years). NAICS 424710 · Petroleum Bulk Terminals. 0.0% of Cook TRI pounds in this extract. Nearest ABS peer: Republic Steel - Massillon Plant (Δ 1 lbs). Pounds ≠ exposure.
Mplx Terminals LLC - Mt Prospect Il Terminal 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