Knapheide Manufacturing 6th & State

What they make

Where it is

Other plants nearby

Every listed plant in Adams 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 ACES, AIR, AIRS/AFS, BR, NPDES, RCRAINFO, TRIS · EPA site type STATIONARY.

• OSHA injury and illness reportsOPERATING
  Record 1415291 · first seen DEC 2025 · last seen DEC 2025
• EPA Facility Registry ServiceEXISTENCE
  Record 110001304240 · first seen APR 2016 · last seen APR 2016

ALSO RECORDED ASKNAPHEIDE MFG CO

IN ADAMS COUNTY5 other plants share this one’s industry (Motor Vehicle Body and Trailer Manufacturing, NAICS 3362); 3 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: KNAPHEIDE MFG CO · JUL 2026

Street address

EPA: 436 S 6TH ST · JUL 2026

City

EPA: QUINCY · JUL 2026

State

EPA: IL · JUL 2026

County (FIPS code)

EPA: 17001 · SEP 2026

Coordinates

Census geocoder: 39.927063659248,-91.406882314738 · JUL 2026 · ON THIS PAGE

EPA: 39.92675,-91.4068 · JUL 2026 · ON THIS PAGE

Employees (band)

OSHA: 20-99 · DEC 2025