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Cincinnati Steel Treating

5701 Mariemont Ave., Cincinnati, OH 45227

LIKELY ACTIVELAST SEEN IN FEDERAL DATA DEC 2025 · 4 SOURCES

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

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What they make

Metal Heat Treating332811

Where it is

39.13888, -84.39366 · CENSUS TIGER
COUNTY
METRO AREA
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STREET VIEW

Other plants nearby

FacilityCityIndustryStatusDistance
Renk America Marine & Industry LLCCincinnatiMetal Heat Treating
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ACTIVE0.1 KM
Metal Polishing Specialties, LLCCincinnatiElectroplating, Plating, Polishing, Anodizing, and Coloring
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UNVERIFIED1.9 KM
Stat Processing INCCincinnatiElectroplating, Plating, Polishing, Anodizing, and Coloring
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Witt Galvanizing- Cincinnati, INC.CincinnatiForging and Stamping
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Hadronics INCCincinnatiMetal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers
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LIKELY ACTIVE3.0 KM

Every listed plant in Hamilton County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 sources hold this plant, and 8 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, EIS, NPDES, OH-CORE, RCRAINFO, TRIS · EPA site type STATIONARY.

  • OSHA injury and illness reportsOPERATING
    Record 1526480 · first seen DEC 2025 · last seen DEC 2025
  • EPA Toxics Release InventoryOPERATING
    first seen DEC 2023 · last seen DEC 2024
  • EPA Facility Registry ServiceEXISTENCE
    Record 110000393440 · first seen JUN 2017 · last seen JUN 2017
  • EPA ECHO compliance recordsOPERATING
    first seen FEB 2014 · last seen FEB 2014

IN HAMILTON COUNTY27 other plants share this one’s industry (Coating, Engraving, Heat Treating, and Allied Activities, NAICS 3328); 19 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: CINCINNATI STEEL TREATING · OCT 2026
Street address
EPA: 5701 MARIEMONT AVE. · OCT 2026
City
EPA: CINCINNATI · OCT 2026
State
EPA: OH · OCT 2026
County (FIPS code)
EPA: 39061 · OCT 2026
Coordinates
EPA: 39.13888,-84.39366 · OCT 2026
Employees (band)
OSHA: 20-99 · DEC 2025
Hazardous waste generator (RCRA)
EPA ECHO: none · OCT 2026

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