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Clean Water Act discharge permit · NPDES ORR803551

WALNUT STREET CENTER, Hillsboro, OR: NPDES ORR803551 discharge permit, effluent exceedances, inspections, penalties

WALNUT STREET CENTER, held by Washington County, holds NPDES permit ORR803551. EPA’s file records it issued July 1, 2021 and expiring July 1, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for WALNUT STREET CENTER: its NPDES ID, its permit type and status, its dates, its address in Hillsboro, Oregon. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ORR803551.

Identity

Facility as filedWALNUT STREET CENTER
Permittee as filedWashington County
NPDES IDORR803551
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedJuly 1, 2021
Expiration dateJuly 1, 2026
Issuing agencySTA
AddressHillsboro, OR 97123
SubwatershedCounsil Creek-Dairy Creek (HUC 170900100308)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES ORR803551.

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 ORR803551.

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

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, ORR803551.

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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 ORR803551 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

The WALNUT STREET CENTER permit, held by Washington County, is one of 5 storm water industrial permits in Hillsboro, and 0.0% of those 5 have a violation on file. Of all 5 Hillsboro storm water industrial permits, this one included, 20.0% carry an earlier issue date than this permit. Among the 9 NPDES permits in the Counsil Creek-Dairy Creek subwatershed, this one included, it records no pollutants under a numeric limit and no pollutants with an effluent exceedance.