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Clean Water Act discharge permit · NPDES IA0036153

GARNER CITY OF STP, Garner, IA: NPDES IA0036153 discharge permit, effluent exceedances, inspections, penalties

GARNER CITY OF STP, held by CITY OF GARNER, holds NPDES permit IA0036153. EPA’s file records it issued March 1, 2019 and expiring February 29, 2024.

GARNER CITY OF STP, Garner, Iowa: Individual permit IA0036153, held by CITY OF GARNER; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued March 1, 2019, term to February 29, 2024, by STA; Sewage Treatment Facilities.

  • Nitrogen, ammonia total [as N]: 48 limits, 39 violations of any kind, 22 effluent exceedances, latest May 31, 2025, largest 1,927% over the limit.
  • Chloride [as Cl]: 4 limits, 23 violations of any kind, 7 effluent exceedances, latest December 31, 2025, largest 12% over the limit.
  • pH: 5 limits, 15 violations of any kind, 5 effluent exceedances, latest February 29, 2024.
  • E. coli: 1 limit, 2 violations of any kind, 2 effluent exceedances, latest June 30, 2026, largest 331% over the limit.
  • Solids, total suspended: 9 limits, 25 violations of any kind, 1 effluent exceedance, latest February 28, 2021, largest 18% over the limit.
  • BOD, carbonaceous [5 day, 20 C]: 4 limits, 22 violations of any kind, 0 effluent exceedances.
  • Oxygen, dissolved [DO]: 1 limit, 7 violations of any kind, 0 effluent exceedances.
  • BOD, 5-day, 20 deg. C: 5 limits, 0 violations of any kind, 0 effluent exceedances.
  • Nitrogen, total [as N]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
  • Nitrogen, Kjeldahl, total [as N]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
  • Phosphorus, total [as P]: 5 limits, 0 violations of any kind, 0 effluent exceedances.

Iowa holds 734 Publicly owned treatment works coverages of this permit type in EPA’s file; 422 were issued before IA0036153. CITY OF GARNER holds 2 permits in Iowa.

Other permits held by CITY OF GARNER

Coverages issued nearest IA0036153

GARNER CITY OF STP among its neighbors

EPA’s permit file holds 2 discharge permits in the Drainage Ditch No 81 subwatershed (HUC 070802070201), IA0036153 among them. Its county holds 13, 1 of them major permits; IA0036153 is a minor permit.

Other permits in the Drainage Ditch No 81 subwatershed (HUC 070802070201)

  • CITY OF GARNER, Garner: IAL036153, minor permit, permit term to December 31, 2025

Identity

Facility as filedGARNER CITY OF STP
Permittee as filedCITY OF GARNER
NPDES IDIA0036153
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedMarch 1, 2019
Expiration dateFebruary 29, 2024
Issuing agencySTA
AddressGarner, IA 50348
SubwatershedDrainage Ditch No 81 (HUC 070802070201)
NAICS221320 – Sewage Treatment Facilities
SIC4952 – Sewerage Systems

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Nitrogen, ammonia total [as N]483922May 31, 20251,927% over the limit
Chloride [as Cl]4237December 31, 202512% over the limit
pH5155February 29, 2024
E. coli122June 30, 2026331% over the limit
Solids, total suspended9251February 28, 202118% over the limit
BOD, carbonaceous [5 day, 20 C]4220
Oxygen, dissolved [DO]170
BOD, 5-day, 20 deg. C500
Nitrogen, total [as N]500
Nitrogen, Kjeldahl, total [as N]500
Phosphorus, total [as P]500

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0036153.

Inspections

EPA’s inspection file holds no inspection for NPDES IA0036153.

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 IA0036153.

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Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES IA0036153 for GARNER CITY OF STP in Garner, IA, held by CITY OF GARNER and listed as administratively continued. The register shows 11 pollutants under a numeric limit and 5 pollutants with an effluent exceedance, with 11 minor discharger class entries.