Clean Water Act discharge permit · NPDES IA0084310

MONTEZUMA, CITY OF WTP, Montezuma, IA: NPDES IA0084310 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
4Pollutants under a numeric limit
1Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

MONTEZUMA, CITY OF WTP, held by City of Montezuma, holds NPDES permit IA0084310. EPA’s file records it issued August 1, 2019 and expiring July 31, 2024.

MONTEZUMA, CITY OF WTP, Montezuma, Iowa: Individual permit IA0084310, held by City of Montezuma; Administratively continued (past its expiration date and still in force until reissued); issued August 1, 2019, term to July 31, 2024, by STA; Water Supply and Irrigation Systems.

Solids, total suspended: 2 limits, 11 violations of any kind, 11 effluent exceedances, latest September 30, 2019, largest 153% over the limit.
Chlorine, total residual: 4 limits, 260 violations of any kind, 0 effluent exceedances.
pH: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Nitrogen, ammonia total [as N]: 5 limits, 0 violations of any kind, 0 effluent exceedances.

MONTEZUMA, CITY OF WTP among its neighbors

EPA’s permit file holds 2 discharge permits in the Moon Creek subwatershed (HUC 070801060402), IA0084310 among them. Its county holds 12, 1 of them major permits; IA0084310 is a minor permit.

Other permits in the Moon Creek subwatershed (HUC 070801060402)

MONTEZUMA CITY OF STP, Montezuma: IA0036935, minor permit, permit term to August 31, 2026

Identity

Facility as filed	MONTEZUMA, CITY OF WTP
Permittee as filed	City of Montezuma
NPDES ID	IA0084310
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	August 1, 2019
Expiration date	July 31, 2024
Issuing agency	STA
Address	Montezuma, IA 50171
Receiving water impaired	303(D) Listed
Subwatershed	Moon Creek (HUC 070801060402)
NAICS	221310 – Water Supply and Irrigation Systems
SIC	4941 – Water Supply

Effluent limits and exceedances

4Pollutants on file
4Under a numeric limit
3With 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	2	11	11	September 30, 2019	153% over the limit
Chlorine, total residual	4	260	0
pH	2	2	0
Nitrogen, ammonia total [as N]	5	0	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0084310.

Inspections

EPA’s inspection file holds no inspection for NPDES IA0084310.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES IA0084310.

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

This public-records page covers NPDES permit IA0084310 for MONTEZUMA, CITY OF WTP in Montezuma, Iowa, held by City of Montezuma, with a Minor discharger class and an administratively continued status. The facts list 1 pollutant under a numeric limit, 1 pollutant with an effluent exceedance, and 4 pollutants on file.