Clean Water Act discharge permit · NPDES IA0026034

MONTICELLO CITY OF STP, Monticello, IA: NPDES IA0026034 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
11Pollutants under a numeric limit
4Pollutants with an effluent exceedance

MONTICELLO CITY OF STP, held by CITY OF MONTICELLO, holds NPDES permit IA0026034. EPA’s file records it issued October 1, 2016 and expiring September 30, 2021. 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	MONTICELLO CITY OF STP
Permittee as filed	CITY OF MONTICELLO
NPDES ID	IA0026034
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	October 1, 2016
Expiration date	September 30, 2021
Issuing agency	STA
Address	Monticello, IA 52310
Receiving water impaired	303(D) Listed
Program components on file	Biosolids, POTW
NAICS	221320 – Sewage Treatment Facilities
SIC	4952 – Sewerage Systems
Other EPA IDs (FRS)	ICIS-AIR source IA0001900005302031

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

12Pollutants on file
11Under a numeric limit
6With 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
Solids, total suspended	9	42	34	February 28, 2026	320% over the limit
BOD, carbonaceous [5 day, 20 C]	4	13	5	June 30, 2023	17% over the limit
Nitrogen, ammonia total [as N]	48	2	2	June 30, 2023	43% over the limit
Coliform, fecal general	0	1	1	October 31, 2005	414% over the limit
pH	5	4	0
Toxicity [acute], Ceriodaphnia dubia	1	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
Nitrogen, Kjeldahl, total [as N]	5	0	0
Di[2-ethylhexyl] phthalate [DEHP]	4	0	0
Toxicity [acute], Pimephales promelas [Fathead Minnow]	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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0026034.

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 IA0026034 there.

Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit IA0026034 for MONTICELLO CITY OF STP in Monticello, IA, held by CITY OF MONTICELLO, with a listed status of administratively continued and a major discharger class. The page lists 11 pollutants under a numeric limit and 4 pollutants with an effluent exceedance, and its status and dates reflect EPA's permit file as loaded on October 14, 2026.