Heidelberg Materials US Cement LLC
UNION BRIDGE, MD · CARROLL COUNTY · NAICS 327310
Data updated May 2026
Heidelberg Materials US Cement LLC sits in the upper third of EPA GHGRP reporters by latest CO₂e (#341 of 8,713 nationally, #2 of 77 in MD).
- National rank #341 of 8,713 GHGRP facilities
- #2 of 77 in MD
- #3 of 434 in Minerals
- 44.5% of HEIDELBERG MATERIALS US CEMENT parent CO₂e
- 2023 mix: 0.3% non-CO₂ (N₂O-led)
- +67.9% since 2011
Heidelberg Materials US Cement LLC vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
1,857,878 341st of 8713 higher than 8,372 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 44.5% of HEIDELBERG MATERIALS US CEMENT reported parent CO₂e (1.9M MT of 4.2M MT ; #1 of 6 GHGRP facilities under that parent ). Inside the EPA Minerals sector it ranks #3 of 434 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 1.9M MT CO₂e reported for 2023, non-CO₂ gases are 0.3% , led by N₂O at 0.2% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 99.7%
- 1.9M MT
- CH₄
- 0.1%
- 2K MT
- N₂O
- 0.2%
- 3K MT
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 1,857,878 |
| 2022 | 1,919,704 |
| 2021 | 1,876,898 |
| 2020 | 2,028,969 |
| 2019 | 1,842,548 |
| 2018 | 1,814,728 |
| 2017 | 1,915,616 |
| 2016 | 1,848,656 |
| 2015 | 1,825,246 |
| 2014 | 1,695,249 |
| 2013 | 1,666,795 |
| 2012 | 1,657,281 |
| 2011 | 1,106,744 |
Facility insight: Heidelberg Materials US Cement LLC
Heidelberg Materials US Cement LLC (GHGRP ID 1002787) is a high-volume reporter at 1.9M MT CO₂e in 2023 from UNION BRIDGE, MD (#341 of 8,713 nationally) under Minerals (NAICS 327310).
From 2011 to 2023, reported CO₂e rose 67.9% (peak 2.0M MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2020 at 2.0M MT CO2e; latest 2023 sits 8.4% below that peak (1.9M MT). The largest year-to-year move was 2011→2012 (+49.7%, 551K MT).
Frequently Asked Questions
Where does Heidelberg Materials US Cement LLC rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Heidelberg Materials US Cement LLC ranks #341 of 8,713 reporting facilities by latest reported CO₂e, and #2 of 77 facilities in MD (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Heidelberg Materials US Cement LLC? ▼
Heidelberg Materials US Cement LLC's 1.9M MT CO₂e is higher than 8,372 of the 8,713 GHGRP facilities with reported emissions (96%), an exact count from the full corpus, not an estimate.
How much CO2 does Heidelberg Materials US Cement LLC emit? ▼
Heidelberg Materials US Cement LLC reported 1.9M MT CO2e in 2023.
What share of HEIDELBERG MATERIALS US CEMENT does Heidelberg Materials US Cement LLC represent? ▼
Heidelberg Materials US Cement LLC accounts for 44.5% of HEIDELBERG MATERIALS US CEMENT's reported GHGRP CO₂e (1.9M MT of 4.2M MT), ranking #1 of 6 facilities under that parent.
What is Heidelberg Materials US Cement LLC's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.3% of reported CO₂e at Heidelberg Materials US Cement LLC, with N₂O the larger non-CO₂ share at 0.2% (CO₂ 99.7%). Shares use the facility's GHGRP gas components for that year.
Where does Heidelberg Materials US Cement LLC rank inside Minerals? ▼
Among EPA GHGRP facilities tagged Minerals, Heidelberg Materials US Cement LLC ranks #3 of 434 by latest reported CO₂e.
Is Heidelberg Materials US Cement LLC reducing emissions? ▼
Over 13 reporting years (2011–2023), Heidelberg Materials US Cement LLC's emissions have increased by 67.9%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Peer sets outside MD for a top-third GHGRP emitter: CO₂e totals first, then Minerals neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside MD (1.9M MT here).
Similar Minerals CO₂e
Nearest same-sector facility totals outside MD.