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Sigma - Aldrich Mfg LLC Dekalb Facility

3500 Dekalb, Saint Louis, MO 63118

LIKELY ACTIVELAST SEEN IN FEDERAL DATA JUL 2025 · 2 SOURCES

Operating signal within 24 months, or from a single source.

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What they make

All Other Basic Organic Chemical Manufacturing325199

Where it is

38.58805, -90.21637 · CENSUS TIGER
COUNTY
METRO AREA
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Other plants nearby

FacilityCityIndustryStatusDistance
STL DekalbSaint LouisAll Other Basic Organic Chemical Manufacturing
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LIKELY ACTIVE0.1 KM
Sigma - Aldrich Co-sigma Chemical CompanySaint LouisAll Other Basic Organic Chemical Manufacturing
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UNVERIFIED0.4 KM
STL CherokeeSaint LouisAll Other Basic Organic Chemical Manufacturing
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LIKELY ACTIVE0.6 KM
Solutia Inc-john F Queeny PlantSaint LouisPetroleum Lubricating Oil and Grease Manufacturing
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Oldcastle Lawn & GardenSaugetAll Other Miscellaneous Wood Product Manufacturing
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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 FEDERAL SOURCES, 6 FIELDS

Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.

EPA cross-references this facility in AIR, AIRS/AFS, BR, EIS, ICIS, MO-DNR, NCDB, RCRAINFO, TSCA · EPA site type STATIONARY.

SourceEvidenceFirst seenLast seen
EPA ECHOOPERATINGJUL 2025JUL 2025
EPA FRSEXISTENCEJUN 2024JUN 2024
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
FIELDSOURCESIGNAL
ADDRESS LINE1EPA FRSJUL 2026
CITYEPA FRSJUL 2026
GEOMEPA FRSJUL 2026
NAMEEPA FRSJUL 2026
RCRA GENERATOR STATUSEPA ECHOSEP 2026
STATEEPA FRSJUL 2026

Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

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