Clean Water Act discharge permit · NPDES IA0032824

POMEROY CITY OF STP, Pomeroy, IA: NPDES IA0032824 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
7Pollutants under a numeric limit
4Pollutants with an effluent exceedance

POMEROY CITY OF STP, held by CITY OF POMEROY, holds NPDES permit IA0032824. EPA’s file records it issued July 1, 2017 and expiring June 30, 2022. 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	POMEROY CITY OF STP
Permittee as filed	CITY OF POMEROY
NPDES ID	IA0032824
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	July 1, 2017
Expiration date	June 30, 2022
Issuing agency	STA
Address	Pomeroy, IA 50575
Subwatershed	Upper Drainage Ditch No 9 (HUC 071000060601)

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

Effluent limits and exceedances

8Pollutants on file
7Under a numeric limit
4With a violation of any kind
4With 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	102	99	June 30, 2008	932% over the limit
Solids, total suspended	5	16	7	December 31, 2025	604% over the limit
BOD, carbonaceous [5 day, 20 C]	5	13	4	May 31, 2023	100% over the limit
pH	2	10	4	May 31, 2026
Nitrogen, ammonia total [as N]	5	0	0
Nitrogen, Kjeldahl, total [as N]	5	0	0
E. coli	3	0	0
Depth of pond or reservoir in feet	3	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 IA0032824.

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 IA0032824 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES IA0032824 for POMEROY CITY OF STP in Pomeroy, IA, held by CITY OF POMEROY, with a Permit status of Administratively continued and a Discharger class of 7 Minor. The page lists 8 pollutants on file, 7 of which are under a numeric limit, and 4 of which have an effluent exceedance. The permit's Issued date is July 1, 2017 and its Expiration date is June 30, 2022, with the status as loaded September 15, 2026.