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Clean Water Act discharge permit · NPDES OR0020575

ESTACADA STP, Estacada, OR: NPDES OR0020575 discharge permit, effluent exceedances, inspections, penalties

ESTACADA STP, held by ESTACADA, CITY OF, holds NPDES permit OR0020575, which discharges to Clackamas River. EPA’s file records it issued September 30, 2003 and expiring August 31, 2008. 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 filedESTACADA STP
Permittee as filedESTACADA, CITY OF
NPDES IDOR0020575
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedSeptember 30, 2003
Expiration dateAugust 31, 2008
AddressEstacada, OR 97023
Receiving waterCLACKAMAS RIVER
SubwatershedDubois Creek-Clackamas River (HUC 170900110603)

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

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. C124242March 31, 202694% over the limit
Nitrogen, ammonia total [as N]23030July 31, 2026261% over the limit
Solids, total suspended121616December 31, 202389% over the limit
Chlorine, total residual233February 28, 2026150% over the limit
E. coli311November 30, 20222% over the limit
Temperature, water deg. centigrade400
pH400
Flow, in conduit or thru treatment plant400
Chlorine usage200
BOD, 5-day, percent removal100
Solids, suspended percent removal100

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
March 22, 2024Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)ST6
October 1, 2019Effluent Violations - Numeric effluent violationST6
June 24, 2019Effluent Violations - Numeric effluent violationST6
August 1, 2017Effluent Violations - Numeric effluent violationST6
July 1, 2017Effluent Violations - Numeric effluent violationST6
June 1, 2017Effluent Violations - Numeric effluent violationST6
March 1, 2017Effluent Violations - Numeric effluent violationST6

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 OR0020575 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 NPDES permit OR0020575 held by ESTACADA, CITY OF for the ESTACADA STP in Estacada, OR, which discharges to the Clackamas River and is administratively continued with a minor discharger class. The page lists 11 pollutants on file, 5 of them under a numeric limit, and 5 pollutants with an effluent exceedance.