The Dow Chemical CO - Louisiana Operations
21255 Hwy 1, (portion Of), Plaquemine, LA 70765
LIKELY ACTIVELAST SEEN IN FEDERAL DATA JUL 2026 · 3 SOURCES
Operating signal within 24 months, or from a single source.
What they make
Petrochemical Manufacturing325110Where it is
30.32000, -91.22556 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Nutrition & Biosciences USA 1 LLC - Plaquemine Methocel | Plaquemine | All Other Basic Organic Chemical Manufacturing 325199 | UNVERIFIED | 1.5 KM |
| Ineos Oxide - a Division of Ineos Americas LLC | Plaquemine | All Other Basic Organic Chemical Manufacturing 325199 | LIKELY ACTIVE | 1.6 KM |
| Tsrc Specialty Materials LLC - Research & Development Pilot Plant | Plaquemine | All Other Basic Organic Chemical Manufacturing 325199 | LIKELY ACTIVE | 1.8 KM |
| Plaquemine Hydrogen Purification | Addis | Industrial Gas Manufacturing 325120 | LIKELY ACTIVE | 2.6 KM |
| Tokai Carbon Cb LTD - Addis Facility | Addis | Other Basic Inorganic Chemical Manufacturing 325180 | ACTIVE | 5.3 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 3 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, CAMDBS, CEDRI, E-GGRT, EGRID, EIA-860, ICIS, LA-TEMPO, NCDB, NPDES, RBLC, RCRAINFO, SEMS, SSTS, TRIS, TSCA · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| EPA ECHO | OPERATING | JUL 2026 | JUL 2026 |
| EPA FRS | EXISTENCE | MAY 2026 | MAY 2026 |
| EPA TRI | OPERATING | DEC 2023 | DEC 2023 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| CITY | EPA FRS | JUL 2026 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| RCRA GENERATOR STATUS | EPA ECHO | SEP 2026 |
| STATE | EPA FRS | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.