Keystone Bar Products INC

What they make

Where it is

Other plants nearby

Every listed plant in Cook County

Also at this address

1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.

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 ACES, AIR, AIRS/AFS, EIS, OSHA-OIS, TSCA · EPA site type STATIONARY.

• EPA ECHO compliance recordsOPERATING
  first seen FEB 2022 · last seen FEB 2022
• EPA Facility Registry ServiceEXISTENCE
  Record 110034192781 · first seen JUN 2017 · last seen JUN 2017

IN COOK COUNTY30 other plants share this one’s industry (Iron and Steel Mills and Ferroalloy Manufacturing, NAICS 3311); 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: KEYSTONE BAR PRODUCTS INC · OCT 2026

Street address

EPA: 317 E 11TH ST · OCT 2026

City

EPA: CHICAGO HEIGHTS · OCT 2026

State

EPA: IL · OCT 2026

County (FIPS code)

EPA: 17031 · OCT 2026

Coordinates

EPA: 41.513201,-87.621295 · OCT 2026