Clean Water Act discharge permit · NPDES IA0021041

NEOLA CITY OF STP, Neola, IA: NPDES IA0021041 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
8Pollutants under a numeric limit
7Pollutants with an effluent exceedance

NEOLA CITY OF STP, held by CITY OF NEOLA, holds NPDES permit IA0021041. EPA’s file records it issued November 1, 2018 and expiring October 31, 2023. 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	NEOLA CITY OF STP
Permittee as filed	CITY OF NEOLA
NPDES ID	IA0021041
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	November 1, 2018
Expiration date	October 31, 2023
Issuing agency	STA
Address	Neola, IA 51559
Subwatershed	Neola Creek-Mosquito Creek (HUC 102300060404)
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

8Pollutants on file
8Under a numeric limit
7With a violation of any kind
7With 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
Nitrogen, ammonia total [as N]	96	140	136	October 31, 2024	314,525% over the limit
Solids, total suspended	9	48	34	January 31, 2026	49,344% over the limit
BOD, carbonaceous [5 day, 20 C]	4	32	23	July 31, 2026	61,639% over the limit
Chloride [as Cl]	4	13	13	September 30, 2024	56,876% over the limit
Oxygen, dissolved [DO]	1	9	9	October 31, 2024	75% over the limit
pH	5	7	3	April 30, 2026
E. coli	1	12	1	October 31, 2024	284% over the limit
BOD, 5-day, 20 deg. C	5	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 IA0021041.

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 IA0021041 there.

Nearby on the register

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

This public-records page covers NPDES permit IA0021041 for the NEOLA CITY OF STP in Neola, Iowa, held by the CITY OF NEOLA and listed as administratively continued after its October 31, 2023 expiration. The facts list 8 pollutants on file, 7 pollutants under a numeric limit, and 7 pollutants with an effluent exceedance.