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Clean Water Act discharge permit · NPDES WAL023396

MUKILTEO WATER AND WASTEWATER DISTRICT WWTF, Mukilteo, WA: NPDES WAL023396 discharge permit, effluent exceedances, inspections, penalties

MUKILTEO WATER AND WASTEWATER DISTRICT WWTF, held by MUKILTEO WATER AND WASTEWATER DISTRICT WWTP, holds NPDES permit WAL023396. EPA’s file records it issued January 1, 2021 and expiring December 31, 2025. 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.

Identity

Facility as filedMUKILTEO WATER AND WASTEWATER DISTRICT WWTF
Permittee as filedMUKILTEO WATER AND WASTEWATER DISTRICT WWTP
NPDES IDWAL023396
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeAssociated permit record
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramBiosolids
IssuedJanuary 1, 2021
Expiration dateDecember 31, 2025
AddressMukilteo, WA 98275
SubwatershedShell Creek-Frontal Puget Sound (HUC 171100190203)

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 WAL023396.

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

DateWhat EPA recordedAgency
January 1, 2019PR: Biosolids: Other Management Practice ViolationEP6

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.

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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 WAL023396 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES WAL023396, held by MUKILTEO WATER AND WASTEWATER DISTRICT WWTP for the MUKILTEO WATER AND WASTEWATER DISTRICT WWTF in Mukilteo, WA, with a permit status of administratively continued. The page lists zero pollutants on file, zero under a numeric limit, and zero with an effluent exceedance, and it gives the permit's issue date as January 1, 2021 and its expiration date as December 31, 2025. The facility is in the Shell Creek-Frontal Puget Sound subwatershed, HUC 171100190203.