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Knife River Portland

12000 Sw Tonquin Rd, Sherwood, OR 97140

UNVERIFIEDLAST SEEN IN FEDERAL DATA DEC 2023 · 3 SOURCES

Present in a source dataset, with no recent operating signal.

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What they make

Asphalt Paving Mixture and Block Manufacturing324121

Where it is

45.34500, -122.79783 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS

Other plants nearby

FacilityCityIndustryStatusDistance
Oldcastle InfrastructureWilsonvilleAsphalt Paving Mixture and Block Manufacturing
324121
 LIKELY ACTIVE3.9 KM
Knife River Farmington AsphaltBeavertonAsphalt Paving Mixture and Block Manufacturing
324121
 UNVERIFIED14.7 KM
Zidell Marine CorporationPortlandAll Other Petroleum and Coal Products Manufacturing
324199
 UNVERIFIED19.9 KM
Carson Oil PortlandPortlandPetroleum Lubricating Oil and Grease Manufacturing
324191
 UNVERIFIED23.0 KM
Christenson OilPortlandPetroleum Lubricating Oil and Grease Manufacturing
324191
 UNVERIFIED23.4 KM

Every listed plant in Washington County

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, EIS, OR-DEQ, RCRAINFO, TRIS · EPA site type STATIONARY.

SourceEvidenceFirst seenLast seen
EPA TRIOPERATINGDEC 2023DEC 2023
EPA FRSEXISTENCEMAY 2019MAY 2019
EPA ECHOOPERATINGJUN 2001JUN 2001
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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