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Clean Water Act discharge permit · NPDES ORR323573

KNIFE RIVER CORPORATION - NW, Troutdale, OR: NPDES ORR323573 discharge permit, effluent exceedances, inspections, penalties

KNIFE RIVER CORPORATION - NW, held by Steyaert, Jeff, holds NPDES permit ORR323573. EPA’s file records it issued May 7, 2013 and expiring December 3, 2017. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for KNIFE RIVER CORPORATION - NW: its NPDES ID, its permit type and status, its dates, its address in Troutdale, Oregon. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ORR323573.

Identity

Facility as filedKNIFE RIVER CORPORATION - NW
Permittee as filedSteyaert, Jeff
NPDES IDORR323573
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedMay 7, 2013
Expiration dateDecember 3, 2017
Issuing agencySTA
AddressTroutdale, OR 97060
Receiving water impaired303(D) Listed
SubwatershedColumbia Slough-Frontal Columbia River (HUC 170900120201)
SIC3273 – Ready-Mixed Concrete

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES ORR323573.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES ORR323573.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID ORR323573 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

The KNIFE RIVER CORPORATION - NW permit, held in Troutdale, is one of 67 storm water industrial permits in Multnomah County, and only 1.5% of those 67 carry an earlier issue date than this one. The permit sits among 151 NPDES permits in the Columbia Slough-Frontal Columbia River subwatershed, and 52.2% of the county's 67 storm water industrial permits have a violation on file. This permit records 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.