Napco Group LLC

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Hofacker Precision Machining LLC	Clayton	Precision Turned Product Manufacturing 332721	● ACTIVE	32.6 KM

Every listed plant in Darke County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold this plant, and 7 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 OH-CORE, RCRAINFO, TRIS · EPA site type STATIONARY.

• EPA ECHO compliance recordsOPERATING
  first seen NOV 2023 · last seen NOV 2023
• EPA Facility Registry ServiceEXISTENCE
  Record 110004628341 · first seen DEC 2015 · last seen DEC 2015

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: NAPCO GROUP LLC · OCT 2026

Street address

EPA: 5963 JAYSVILLE SAINT JOHN ROAD · OCT 2026

City

EPA: GREENVILLE · OCT 2026

State

EPA: OH · OCT 2026

County (FIPS code)

EPA: 39037 · OCT 2026

Coordinates

EPA: 40.091198,-84.599082 · OCT 2026

Hazardous waste generator (RCRA)

EPA ECHO: none · OCT 2026