emissionhub.cc / Largest emitters / Maryland / Heidelberg Materials US Cement LLC
Heidelberg Materials US Cement LLC: 1.86 million metric tons CO2e in 2023
Heidelberg Materials US Cement LLC in Union Bridge, Maryland reported 1,857,878 metric tons of CO2-equivalent direct emissions to the EPA for 2023, the #1 largest of 53 reporting direct emitters in Maryland and #327 nationally.
- Direct emissions, 2023
- 1,857,878 t CO2e
- Rank
- #1 of 53 direct emitters in Maryland; #327 of 6,455 in the U.S.
- Share of Maryland total
- 12.9%
- Sector
- Minerals
- Location
- Union Bridge, Carroll County, Maryland
- Parent company
- HEIDELBERG MATERIALS US CEMENT LLC (100%)
- NAICS code
- 327310
- EPA GHGRP facility ID
- 1002787
By gas
| Gas | t CO2e | Share |
|---|---|---|
| Carbon Dioxide | 1,852,528 | 99.7% |
| Nitrous Oxide | 3,395 | 0.2% |
| Methane | 1,954 | 0.1% |
See facility 1002787 on EPA FLIGHT · All direct emitters in Maryland
Source: EPA Greenhouse Gas Reporting Program, 2023 reporting year, sector-level emissions from data.epa.gov (fetched October 31, 2026). Direct emissions in metric tons CO2e as EPA totals them: emitter sectors only, biogenic CO2 reported separately. Covers facilities that report as direct emitters; most emit 25,000 t CO2e or more a year. Reference only.
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