Clean Water Act discharge permit · NPDES OR0022802

YAMHILL STP, Yamhill, OR: NPDES OR0022802 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
12Pollutants under a numeric limit
1Pollutants with an effluent exceedance

YAMHILL STP, held by YAMHILL, CITY OF, holds NPDES permit OR0022802, which discharges to North Yamhill River. EPA’s file records it issued September 24, 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 filed	YAMHILL STP
Permittee as filed	YAMHILL, CITY OF
NPDES ID	OR0022802
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	September 24, 2003
Expiration date	August 31, 2008
Address	Yamhill, OR 97148
Receiving water	NORTH YAMHILL RIVER
Subwatershed	Yamhill Creek (HUC 170900080605)

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

Effluent limits and exceedances

12Pollutants on file
12Under a numeric limit
2With a violation of any kind
1With an effluent exceedance

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 measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Solids, total suspended	9	26	1	November 30, 2024	11% over the limit
BOD, 5-day, 20 deg. C	9	25	0
Flow, in conduit or thru treatment plant	6	0	0
pH	4	0	0
E. coli	3	0	0
Temperature, water deg. fahrenheit	2	0	0
Oxygen, dissolved [DO]	2	0	0
Chlorine, total residual	2	0	0
Chlorine usage	2	0	0
Nitrogen, ammonia total [as N]	1	0	0
BOD, 5-day, percent removal	1	0	0
Solids, suspended percent removal	1	0	0

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

3Single-event violations

Date	What EPA recorded	Agency
February 5, 2024	Effluent Violations - Unauthorized Discharge	ST6
February 5, 2024	Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)	ST6
January 1, 2022	Reporting Violations - Improper/ Incorrect Reporting	ST6

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

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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 OR0022802 there.

Nearby on the register

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

This public-records page covers NPDES permit OR0022802, held by YAMHILL, CITY OF for the YAMHILL STP discharging to North Yamhill River in the Yamhill Creek subwatershed (HUC 170900080605), with an administratively continued status. The permit lists 12 pollutants on file, 2 under a numeric limit, 2 with a violation of any kind, and 1 with an effluent exceedance.