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Clean Water Act discharge permit · NPDES WA0029378

COUPEVILLE STP, Coupeville, WA: NPDES WA0029378 discharge permit, effluent exceedances, inspections, penalties

COUPEVILLE STP, held by Town of Coupeville, holds NPDES permit WA0029378. EPA’s file records it issued June 19, 2019 and expiring June 30, 2024.

COUPEVILLE STP, Coupeville, Washington: Individual permit WA0029378, held by Town of Coupeville; Publicly owned treatment works; Effective; issued June 19, 2019, term to June 30, 2024, by State.

  • BOD, 5-day, 20 deg. C: 0 limits, 132 violations of any kind, 0 effluent exceedances.
  • Solids, total suspended: 0 limits, 132 violations of any kind, 0 effluent exceedances.
  • Chlorine, total residual: 0 limits, 124 violations of any kind, 0 effluent exceedances.
  • Flow: 0 limits, 60 violations of any kind, 0 effluent exceedances.
  • Temperature, water deg. centigrade: 0 limits, 41 violations of any kind, 0 effluent exceedances.
  • pH: 0 limits, 30 violations of any kind, 0 effluent exceedances.
  • Coliform, fecal general: 0 limits, 30 violations of any kind, 0 effluent exceedances.
  • Nitrogen, ammonia total [as N]: 0 limits, 16 violations of any kind, 0 effluent exceedances.
  • Nitrite + Nitrate total [as N]: 0 limits, 16 violations of any kind, 0 effluent exceedances.
  • Nitrogen, Kjeldahl, total [as N]: 0 limits, 10 violations of any kind, 0 effluent exceedances.

Washington holds 238 Publicly owned treatment works coverages of this permit type in EPA’s file; 217 were issued before WA0029378. Town of Coupeville holds 2 permits in Washington.

Other permits held by Town of Coupeville

Coverages issued nearest WA0029378

COUPEVILLE STP among its neighbors

Its county holds 56, 0 of them major permits; WA0029378 is a minor permit.

Other permits in the county

Identity

Facility as filedCOUPEVILLE STP
Permittee as filedTown of Coupeville
NPDES IDWA0029378
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedJune 19, 2019
Expiration dateJune 30, 2024
Issuing agencyState
AddressCoupeville, WA 98239
Program components on filePOTW, Pretreatment
SIC4952 – Sewerage Systems

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
BOD, 5-day, 20 deg. C01320
Solids, total suspended01320
Chlorine, total residual01240
Flow0600
Temperature, water deg. centigrade0410
pH0300
Coliform, fecal general0300
Nitrogen, ammonia total [as N]0160
Nitrite + Nitrate total [as N]0160
Nitrogen, Kjeldahl, total [as N]0100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES WA0029378.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES WA0029378.

Inspections

EPA’s inspection file holds no inspection for NPDES WA0029378.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES WA0029378.

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Nearby on the register

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

What this page shows

The page is an EPA-sourced public-records entry for NPDES permit WA0029378, held by the Town of Coupeville for the COUPEVILLE STP, a publicly owned treatment works classed as a minor discharger, with an effective status and an issue date of June 19, 2019 and an expiration date of June 30, 2024. It lists 10 pollutants on file, with 0 under a numeric limit, 10 with a violation of any kind, and 0 with an effluent exceedance.