Heidelberg Materials US Cement LLC

675 Quaker Hill Rd, Union Bridge, MD 21791

LIKELY ACTIVELAST SEEN IN FEDERAL DATA MAR 2025 · 3 SOURCES

Operating signal within 24 months, or from a single source.

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What they make

Cement Manufacturing327310

Where it is

39.55553, -77.16550 · CENSUS TIGER

COUNTY

Carroll County

METRO AREA

Baltimore-Columbia-Towson, MD

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Other plants nearby

Facility	City	Industry	Status	Distance
Keymar Aggregates Engineering	Keymar	Ready-Mix Concrete Manufacturing 327320	UNVERIFIED	8.3 KM
Thomas/bennett/hunter INC.	Westminster	Ready-Mix Concrete Manufacturing 327320	UNVERIFIED	13.4 KM
Rinker Materials Hydro Conduit- Frederick	Frederick	Ready-Mix Concrete Manufacturing 327320	LIKELY ACTIVE	22.5 KM
Federal Stone Industries, INC.	Thurmont	Other Concrete Product Manufacturing 327390	UNVERIFIED	22.2 KM
Hanover Prest Paving Brick Plt	Hanover	Asphalt Paving Mixture and Block Manufacturing 324121	LIKELY ACTIVE	28.9 KM

Every listed plant in Carroll County

Also at this address

1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.

Lehigh Cement Company

Union Bridge, MD

UNVERIFIED327310

Where this record comes from

3 sources hold this plant, and 6 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in CEDRI, E-GGRT, ICIS, MD-EPSC, MD-PEMIS, MD-TEMPO, NCDB, NPDES, RBLC, TRIS, TSCA · EPA site type STATIONARY.

EPA Facility Registry ServiceEXISTENCE
Record 110003507385 · first seen MAY 2026 · last seen MAY 2026
EPA ECHO compliance recordsOPERATING
first seen MAR 2025 · last seen MAR 2025
EPA Toxics Release InventoryOPERATING
first seen DEC 2023 · last seen DEC 2024

IN CARROLL COUNTY4 other plants share this one’s industry (Cement and Concrete Product Manufacturing, NAICS 3273); 0 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name: EPA: HEIDELBERG MATERIALS US CEMENT LLC · OCT 2026
Street address: EPA: 675 QUAKER HILL RD · OCT 2026
City: EPA: UNION BRIDGE · OCT 2026
State: EPA: MD · OCT 2026
County (FIPS code): EPA: 24013 · OCT 2026
Coordinates: EPA: 39.55553,-77.1655 · OCT 2026

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