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Clean Water Act discharge permit · NPDES WA0020486

MONROE STP, Monroe, WA: NPDES WA0020486 discharge permit, effluent exceedances, inspections, penalties

MONROE STP, held by MONROE CITY, holds NPDES permit WA0020486. EPA’s file records it issued November 28, 2018 and expiring November 30, 2023. 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.

Identity

Facility as filedMONROE STP
Permittee as filedMONROE CITY
NPDES IDWA0020486
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedNovember 28, 2018
Expiration dateNovember 30, 2023
Issuing agencyState
AddressMonroe, WA 98272
SubwatershedElwell Creek-Skykomish River (HUC 171100090702)
Other EPA IDs (FRS)RCRA handler WAH000028028

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Solids, total suspended01179March 31, 201894% over the limit
BOD, 5-day, 20 deg. C01102March 31, 20177% over the limit
Solids, suspended percent removal042March 31, 201773% over the limit
BOD, percent removal [total]031March 31, 201727% over the limit
pH0270
Coliform, fecal general0270
Flow0270
Temperature, water deg. centigrade020

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 WA0020486.

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 WA0020486 there.

Nearby on the register

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

What this page shows

This public-records page covers the NPDES discharge permit WA0020486 for MONROE STP in Monroe, WA, held by MONROE CITY, with a status of Effective and a discharger class of Minor. The facts list 8 pollutants on file, 4 of which have an effluent exceedance, and the permit is recorded as issued November 28, 2018 and expiring November 30, 2023, with the subwatershed Elwell Creek-Skykomish River (HUC 171100090702).