Heidelberg Materials US Cement LLC
675 Quaker Hill Rd, Union Bridge, MD 21791
Operating signal within 24 months, or from a single source.
What they make
Cement Manufacturing327310Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Lehigh Cement Company | Union Bridge | Cement Manufacturing 327310 | UNVERIFIED | 0.7 KM |
| Keymar Aggregates Engineering | Keymar | Ready-Mix Concrete Manufacturing 327320 | UNVERIFIED | 8.3 KM |
| Woodsboro Ready-mix Concrete Plant | Woodsboro | Ready-Mix Concrete Manufacturing 327320 | UNVERIFIED | 12.1 KM |
| Thomas/bennett/hunter INC. | Westminster | Ready-Mix Concrete Manufacturing 327320 | LIKELY ACTIVE | 13.4 KM |
| Rinker Materials Hydro Conduit- Frederick | Frederick | Ready-Mix Concrete Manufacturing 327320 | UNVERIFIED | 22.5 KM |
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.
WHERE THIS RECORD COMES FROM — 3 FEDERAL SOURCES, 5 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
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.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| EPA FRS | EXISTENCE | MAY 2026 | MAY 2026 |
| EPA ECHO | OPERATING | MAR 2025 | MAR 2025 |
| EPA TRI | OPERATING | DEC 2023 | DEC 2023 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| CITY | EPA FRS | JUL 2026 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| STATE | EPA FRS | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.