Matheson - LEMONT PLANT
ROMEOVILLE, IL · WILL COUNTY · NAICS 325120
Data updated May 2026
Matheson - LEMONT PLANT sits in the upper third of EPA GHGRP reporters by latest CO₂e (#1,077 of 8,713 nationally, #40 of 299 in IL).
- National rank #1,077 of 8,713 GHGRP facilities
- #40 of 299 in IL
- #160 of 534 in Chemicals
- 54.7% of MATHESON TRI-GAS parent CO₂e
- +18.1% since 2011
Matheson - LEMONT PLANT vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
440,482 1077th of 8713 higher than 7,636 of 8,713 facilities
GHGRP facilities, banded by latest reported CO₂e (MT)
Each bar is a band; taller bars hold more facilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA Greenhouse Gas Reporting Program · 2023
Facility footprint context
This site accounts for 54.7% of MATHESON TRI-GAS reported parent CO₂e (440K MT of 805K MT ; #1 of 6 GHGRP facilities under that parent ). Inside the EPA Chemicals sector it ranks #160 of 534 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 440,482 |
| 2022 | 395,706 |
| 2021 | 399,135 |
| 2020 | 375,649 |
| 2019 | 431,888 |
| 2018 | 385,979 |
| 2017 | 320,285 |
| 2016 | 337,576 |
| 2015 | 361,942 |
| 2014 | 360,176 |
| 2013 | 327,563 |
| 2012 | 291,973 |
| 2011 | 372,907 |
Facility insight: Matheson - LEMONT PLANT
Matheson - LEMONT PLANT (GHGRP ID 1002044) is a high-volume reporter at 440K MT CO₂e in 2023 from ROMEOVILLE, IL (#1,077 of 8,713 nationally) under Chemicals (NAICS 325120).
From 2011 to 2023, reported CO₂e rose 18.1% (peak 440K MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Frequently Asked Questions
Where does Matheson - LEMONT PLANT rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Matheson - LEMONT PLANT ranks #1,077 of 8,713 reporting facilities by latest reported CO₂e, and #40 of 299 facilities in IL (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Matheson - LEMONT PLANT? ▼
Matheson - LEMONT PLANT's 440K MT CO₂e is higher than 7,636 of the 8,713 GHGRP facilities with reported emissions (88%), an exact count from the full corpus, not an estimate.
How much CO2 does Matheson - LEMONT PLANT emit? ▼
Matheson - LEMONT PLANT reported 440K MT CO2e in 2023.
What share of MATHESON TRI-GAS does Matheson - LEMONT PLANT represent? ▼
Matheson - LEMONT PLANT accounts for 54.7% of MATHESON TRI-GAS's reported GHGRP CO₂e (440K MT of 805K MT), ranking #1 of 6 facilities under that parent.
Where does Matheson - LEMONT PLANT rank inside Chemicals? ▼
Among EPA GHGRP facilities tagged Chemicals, Matheson - LEMONT PLANT ranks #160 of 534 by latest reported CO₂e.
Is Matheson - LEMONT PLANT reducing emissions? ▼
Over 13 reporting years (2011–2023), Matheson - LEMONT PLANT's emissions have increased by 18.1%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Peer sets outside IL for a top-third GHGRP emitter: CO₂e totals first, then Chemicals neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside IL (440K MT here).
Similar Chemicals CO₂e
Nearest same-sector facility totals outside IL.