Clean Water Act discharge permit · NPDES IA0041904

OGDEN CITY OF STP, Ogden, IA: NPDES IA0041904 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MajorDischarger class
13Pollutants under a numeric limit
6Pollutants with an effluent exceedance

OGDEN CITY OF STP, held by CITY OF OGDEN, holds NPDES permit IA0041904. EPA’s file records it issued September 1, 2020 and expiring August 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 filed	OGDEN CITY OF STP
Permittee as filed	CITY OF OGDEN
NPDES ID	IA0041904
Permit status	Effective
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	September 1, 2020
Expiration date	August 31, 2025
Issuing agency	STA
Address	Ogden, IA 50212
Subwatershed	East Beaver Creek (HUC 071000040904)
NAICS	221320 – Sewage Treatment Facilities
SIC	4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

15Pollutants on file
13Under a numeric limit
11With a violation of any kind
6With 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
Flow, in conduit or thru treatment plant	0	129	85	October 31, 2014	31,900% over the limit
Nitrogen, ammonia total [as N]	48	30	22	January 31, 2024	212% over the limit
Copper, total [as Cu]	4	35	21	September 30, 2022	110% over the limit
BOD, carbonaceous [5 day, 20 C]	4	23	9	February 28, 2015	185% over the limit
Solids, total suspended	9	18	4	February 29, 2008	29% over the limit
pH	5	9	2	July 31, 2018
Nitrogen, nitrate total [as N]	2	7	0
Oxygen, dissolved [DO]	1	5	0
Toxicity [acute], Ceriodaphnia dubia	1	2	0
Toxicity [acute], Pimephales promelas [Fathead Minnow]	1	2	0
E. coli	0	1	0
Nitrogen, total [as N]	10	0	0
Phosphorus, total [as P]	10	0	0
BOD, 5-day, 20 deg. C	5	0	0
Phenols	4	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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0041904.

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 IA0041904 there.

Nearby on the register

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

This public-records page covers the NPDES discharge permit IA0041904 for OGDEN CITY OF STP in Ogden, IA, held by CITY OF OGDEN, with an effective permit status, a Major Discharger class, and a publicly owned treatment works facility type. The facts list 15 pollutants on file, 13 under a numeric limit, 11 with a violation of any kind, and 6 with an effluent exceedance.