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NPDES IA0023442 · Clean Water Act

IOWA FALLS CITY OF STP, Iowa Falls, IA: NPDES IA0023442 discharge permit, effluent exceedances, inspections, penalties

IOWA FALLS CITY OF STP, Iowa Falls, Iowa: Individual permit IA0023442, held by CITY OF IOWA FALLS; Publicly owned treatment works; Administratively continued; issued September 1, 2020, term to August 31, 2025, by STA; Sewage Treatment Facilities.

6 of the 13 pollutants listed for NPDES IA0023442 have no violation or effluent exceedance.

  • pH: 7 limits, 8 violations of any kind, 1 effluent exceedance, latest January 31, 2017.
  • Solids, total suspended: 13 limits, 18 violations of any kind.
  • BOD, carbonaceous [5 day, 20 C]: 8 limits, 14 violations of any kind.
  • Chlorine, total residual: 8 limits, 10 violations of any kind.
  • Nitrogen, ammonia total [as N]: 144 limits, 8 violations of any kind.
  • Toxicity [acute], Ceriodaphnia dubia: 1 limit, 3 violations of any kind.
  • Toxicity [acute], Pimephales promelas [Fathead Minnow]: 1 limit, 3 violations of any kind.
  • Nitrogen, total [as N]: 15 limits.
  • Phosphorus, total [as P]: 15 limits.
  • BOD, 5-day, 20 deg. C: 5 limits.
  • Nitrogen, Kjeldahl, total [as N]: 5 limits.
  • Chloride [as Cl]: 5 limits.
  • E. coli: 2 limits.

Iowa holds 734 Publicly owned treatment works coverages of this permit type in EPA’s file; 571 were issued before IA0023442. CITY OF IOWA FALLS holds 2 permits in Iowa.

Other permits held by CITY OF IOWA FALLS

Coverages issued nearest IA0023442

IOWA FALLS CITY OF STP among its neighbors

2 discharge permits are in the School Creek-Iowa River subwatershed (HUC 070802070901); IA0023442 is one. Its county: 10, 2 major; IA0023442 is major permit.

Other permits in the School Creek-Iowa River subwatershed (HUC 070802070901)

Identity

FacilityIOWA FALLS CITY OF STP
PermitteeCITY OF IOWA FALLS
NPDES IDIA0023442
StatusAdministratively continued
TypeIndividual permit
ClassMajor
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedSeptember 1, 2020
ExpiresAugust 31, 2025
AgencySTA
AddressIowa Falls, IA 50126
SubwatershedSchool Creek-Iowa River (HUC 070802070901)
NAICS221320 – Sewage Treatment Facilities
SIC4952 – Sewerage Systems

NPDES IA0023442: effluent limits and exceedances

IOWA FALLS CITY OF STP (NPDES IA0023442): 13 pollutants on file, 13 limited; 7 with a violation of any kind, 1 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
pH781January 31, 2017
Solids, total suspended13180
BOD, carbonaceous [5 day, 20 C]8140
Chlorine, total residual8100
Nitrogen, ammonia total [as N]14480
Toxicity [acute], Ceriodaphnia dubia130
Toxicity [acute], Pimephales promelas [Fathead Minnow]130
Nitrogen, total [as N]1500
Phosphorus, total [as P]1500
BOD, 5-day, 20 deg. C500
Nitrogen, Kjeldahl, total [as N]500
Chloride [as Cl]500
E. coli200

NPDES IA0023442: inspections, violations and enforcement

NPDES IA0023442 (IOWA FALLS CITY OF STP): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES IA0023442

NPDES IA0023442: 13 pollutant rows, 0 dated events; ICIS-NPDES download, loaded October 14, 2026.