Hartman Machine Service

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Tag Engineering, INC.	Gwynn Oak	Machine Shops 332710	● ACTIVE	3.7 KM
IQInternational Quality Advantage LLC	Windsor Mill	Machine Shops 332710	◐ LIKELY ACTIVE	5.1 KM
Quantum Lean LLC	Baltimore	Machine Shops 332710	● ACTIVE	5.3 KM
Supplyx LLC	Ellicott City	Other Electronic Component Manufacturing 334419	● ACTIVE	5.9 KM
Wits End Fabrication, LLC	Halethorpe	Other Motor Vehicle Parts Manufacturing 336390	● ACTIVE	6.8 KM

Every listed plant in Baltimore County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 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 MD-EPSC, NPDES, OSHA-OIS · EPA site type STATIONARY.

• EPA ECHO compliance recordsOPERATING
  first seen JUN 2025 · last seen JUN 2025
• EPA Facility Registry ServiceEXISTENCE
  Record 110019902140 · first seen JAN 2016 · last seen JAN 2016

IN BALTIMORE COUNTY22 other plants share this one’s industry (Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing, NAICS 3327); 5 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: HARTMAN MACHINE SERVICE · OCT 2026

Street address

EPA: 5732 CALVERTON STREET · OCT 2026

City

EPA: BALTIMORE · OCT 2026

State

EPA: MD · OCT 2026

County (FIPS code)

EPA: 24005 · OCT 2026

Coordinates

EPA: 39.2857,-76.73363 · OCT 2026