St Marys Cement

9333 Dearborn St, Detroit, MI 48209

LIKELY ACTIVELAST SEEN IN FEDERAL DATA OCT 2025 · 4 SOURCES

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

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What they make

Cement Manufacturing327310

Where it is

42.29313, -83.12936 · CENSUS TIGER

COUNTY

Wayne County

METRO AREA

Detroit-Warren-Dearborn, MI

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Other plants nearby

Facility	City	Industry	Status	Distance
Superior Materials 32	Detroit	Ready-Mix Concrete Manufacturing 327320	UNVERIFIED	1.0 KM
Mccoig Concrete-springwells	Detroit	Ready-Mix Concrete Manufacturing 327320	LIKELY ACTIVE	1.9 KM
International Precast Solutions LLC	River Rouge	Other Concrete Product Manufacturing 327390	LIKELY ACTIVE	2.5 KM
Hercules Concrete - Detroit	Detroit	Ready-Mix Concrete Manufacturing 327320	LIKELY ACTIVE	4.9 KM
Detroit Aggregate Port	Detroit	Ready-Mix Concrete Manufacturing 327320	LIKELY ACTIVE	4.2 KM

Every listed plant in Wayne County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 sources hold this plant, and 10 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 AIR, AIRS/AFS, BR, EIS, NCDB, NPDES, RCRAINFO, TRIS, TSCA · EPA site type STATIONARY.

EPA ECHO compliance recordsOPERATING
first seen OCT 2025 · last seen OCT 2025
EPA Toxics Release InventoryOPERATING
first seen DEC 2023 · last seen DEC 2024
DOL Form 5500 retirement plan filingsOPERATING
Record 383611299|MI|48209|9333 dearborn st · first seen DEC 2024 · last seen DEC 2024
EPA Facility Registry ServiceEXISTENCE
Record 110000614470 · first seen JUN 2017 · last seen JUN 2017

IN WAYNE COUNTY31 other plants share this one’s industry (Cement and Concrete Product Manufacturing, NAICS 3273); 13 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: ST MARYS CEMENT · OCT 2026
Street address: EPA: 9333 DEARBORN ST · OCT 2026
City: EPA: DETROIT · OCT 2026
State: EPA: MI · OCT 2026
County (FIPS code): EPA: 26163 · OCT 2026
Coordinates: EPA: 42.293126,-83.129359 · OCT 2026
Employees (band): DOL: 1-19 · DEC 2024
Retirement plan filing (Form 5500): DOL: 17 active participants, plan year ending 2024-12-31, 2 plan(s) · DEC 2024
Hazardous waste generator (RCRA): EPA ECHO: VSQG · OCT 2026
State business registration: CT SOTS: ST. MARYS CEMENT U.S. LLC, registered with the Connecticut Secretary of the State; Limited liability company formed in Delaware; registered 2022-03-29; active, annual report filed 2026-01-28 · JAN 2026

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