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Solvay Chemicals INC

3500 Industrial Way, Longview, WA 98632

LIKELY ACTIVELAST SEEN IN FEDERAL DATA JUL 2026 · 3 SOURCES

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

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What they make

Industrial Gas Manufacturing325120

Where it is

46.13695, -122.98251 · CENSUS TIGER
COUNTY
METRO AREA
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Other plants nearby

FacilityCityIndustryStatusDistance
Specialty Minerals LongviewLongviewOther Basic Inorganic Chemical Manufacturing
325188
UNVERIFIED0.5 KM
Solvay 2025LongviewOther Basic Inorganic Chemical Manufacturing
325180
LIKELY ACTIVE0.4 KM
Hasa INCLongviewOther Basic Inorganic Chemical Manufacturing
325188
UNVERIFIED0.3 KM
Eagle US 2 LLCLongviewOther Basic Inorganic Chemical Manufacturing
325180
LIKELY ACTIVE0.3 KM
Westlake US 2 LLCLongviewOther Basic Inorganic Chemical Manufacturing
325180
LIKELY ACTIVE0.6 KM

Every listed plant in Cowlitz 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.

Solvay 2025
Longview, WA
LIKELY ACTIVE325180EMP 20-99
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, E-GGRT, EIS, ICIS, NCDB, NPDES, RCRAINFO, SSTS, TRIS, TSCA, WA-FSIS · EPA site type STATIONARY.

SourceEvidenceFirst seenLast seen
EPA ECHOOPERATINGJUL 2026JUL 2026
EPA FRSEXISTENCEMAR 2025MAR 2025
EPA TRIOPERATINGDEC 2023DEC 2023
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
FIELDSOURCESIGNAL
ADDRESS LINE1EPA FRSJUL 2026
CITYEPA FRSJUL 2026
GEOMEPA FRSJUL 2026
NAMEEPA FRSJUL 2026
RCRA GENERATOR STATUSEPA ECHOAUG 2026
STATEEPA FRSJUL 2026

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

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