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NPDES IA0036111 · Clean Water Act

MARCUS CITY OF STP, Marcus, IA: NPDES IA0036111 discharge permit, effluent exceedances, inspections, penalties

MARCUS CITY OF STP, Marcus, Iowa: Individual permit IA0036111, held by CITY OF MARCUS; Publicly owned treatment works; Administratively continued; issued February 1, 2020, term to January 31, 2025, by STA.

3 of the 7 pollutants listed for NPDES IA0036111 have no violation or effluent exceedance.

  • Chloride [as Cl]: 4 limits, 8 violations of any kind, 8 effluent exceedances, latest May 31, 2025, largest 85% over the limit.
  • pH: 2 limits, 6 violations of any kind, 6 effluent exceedances, latest May 31, 2025.
  • BOD, carbonaceous [5 day, 20 C]: 5 limits, 4 violations of any kind, 2 effluent exceedances, latest May 31, 2023, largest 35% over the limit.
  • Solids, total suspended: 5 limits, 3 violations of any kind, 1 effluent exceedance, latest May 31, 2026, largest 6% over the limit.
  • Nitrogen, ammonia total [as N]: 5 limits.
  • E. coli: 3 limits.
  • Depth of pond or reservoir in feet: 3 limits.

Iowa holds 734 Publicly owned treatment works coverages of this permit type in EPA’s file; 503 were issued before IA0036111.

Coverages issued nearest IA0036111

MARCUS CITY OF STP among its neighbors

2 discharge permits are in the Whisky Creek subwatershed (HUC 102300040103); IA0036111 is one. Its county: 14, 1 major; IA0036111 is minor permit.

Other permits in the Whisky Creek subwatershed (HUC 102300040103)

Identity

FacilityMARCUS CITY OF STP
PermitteeCITY OF MARCUS
NPDES IDIA0036111
StatusAdministratively continued
TypeIndividual permit
ClassMinor
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedFebruary 1, 2020
ExpiresJanuary 31, 2025
AgencySTA
AddressMarcus, IA 51035
SubwatershedWhisky Creek (HUC 102300040103)

NPDES IA0036111: effluent limits and exceedances

MARCUS CITY OF STP (NPDES IA0036111): 7 pollutants on file, 7 limited; 4 with a violation of any kind, 4 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
Chloride [as Cl]488May 31, 202585% over the limit
pH266May 31, 2025
BOD, carbonaceous [5 day, 20 C]542May 31, 202335% over the limit
Solids, total suspended531May 31, 20266% over the limit
Nitrogen, ammonia total [as N]500
E. coli300
Depth of pond or reservoir in feet300

NPDES IA0036111: inspections, violations and enforcement

NPDES IA0036111 (MARCUS CITY OF STP): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES IA0036111

NPDES IA0036111: 7 pollutant rows, 0 dated events; ICIS-NPDES download, loaded September 15, 2026.