Simpson Construction Materials LLC Valley Park

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
PCPolynt Composites USA INC	Valley Park	Petroleum Refineries 324110	◐ LIKELY ACTIVE	3.0 KM
AQAntire Quarry	Eureka	Asphalt Paving Mixture and Block Manufacturing 324121	◐ LIKELY ACTIVE	6.1 KM
Chemco Industries INC	Saint Louis	Soap and Other Detergent Manufacturing 325611	● ACTIVE	6.1 KM
NBN B West Contracting	House Springs	Asphalt Paving Mixture and Block Manufacturing 324121	◐ LIKELY ACTIVE	17.2 KM
FWFred Weber INC. - Antonia Plant	Antonia	Asphalt Paving Mixture and Block Manufacturing 324121	◇ UNVERIFIED	19.1 KM

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

• EPA ECHO compliance recordsOPERATING
  first seen FEB 2026 · last seen FEB 2026
• EPA Facility Registry ServiceEXISTENCE
  Record 110009888372 · first seen JUN 2017 · last seen JUN 2017

IN ST. LOUIS COUNTY32 other plants share this one’s industry (Petroleum and Coal Products Manufacturing, NAICS 3241); 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: SIMPSON CONSTRUCTION MATERIALS LLC VALLEY PARK · OCT 2026

Street address

EPA: 699 NORTH OUTER ROAD · OCT 2026

City

EPA: VALLEY PARK · OCT 2026

State

EPA: MO · OCT 2026

County (FIPS code)

EPA: 29189 · OCT 2026

Coordinates

EPA: 38.5378,-90.51821 · OCT 2026