Leonards Metal INC - Mueller Road Plant

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
RPRuger Precision Metals	Earth City	Powder Metallurgy Part Manufacturing 332117	◐ LIKELY ACTIVE	6.6 KM
Stingray Manufacturing LLC	Maryland Heights	Commercial and Service Industry Machinery Manufacturing 333310	● ACTIVE	14.5 KM
MMiTek	Hazelwood	Metal Crown, Closure, and Other Metal Stamping (except Automotive) 332119	◐ LIKELY ACTIVE	13.0 KM
FMFord Motor Co-hazelwood	Hazelwood	Metal Crown, Closure, and Other Metal Stamping (except Automotive) 332119	◇ UNVERIFIED	13.3 KM
SESilver Eagle Construction Products	O Fallon	Iron and Steel Forging 332111	◐ LIKELY ACTIVE	15.3 KM

Every listed plant in St. Charles 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 AIR, AIRS/AFS, EIS, MO-DNR, NPDES, RCRAINFO, TRIS · EPA site type STATIONARY.

• EPA Facility Registry ServiceEXISTENCE
  Record 110012607474 · first seen AUG 2021 · last seen AUG 2021
• EPA ECHO compliance recordsOPERATING
  first seen AUG 2019 · last seen AUG 2019

IN ST. CHARLES COUNTY4 other plants share this one’s industry (Forging and Stamping, NAICS 3321); 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: LEONARDS METAL INC - MUELLER ROAD PLANT · OCT 2026

Street address

EPA: 3600 MUELLER ROAD · OCT 2026

City

EPA: ST. CHARLES · OCT 2026

State

EPA: MO · OCT 2026

County (FIPS code)

EPA: 29183 · OCT 2026

Coordinates

EPA: 38.821566,-90.501393 · OCT 2026

Hazardous waste generator (RCRA)

EPA ECHO: VSQG · OCT 2026