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NPDES IA0057207 · Clean Water Act

MARBLE ROCK CITY OF STP, Marble Rock, IA: NPDES IA0057207 discharge permit, effluent exceedances, inspections, penalties

MARBLE ROCK CITY OF STP, Marble Rock, Iowa: Individual permit IA0057207, held by CITY OF MARBLE ROCK; Publicly owned treatment works; Administratively continued; issued May 1, 2020, term to April 30, 2025, by STA; Sewage Treatment Facilities.

3 of the 7 pollutants listed for NPDES IA0057207 have no violation or effluent exceedance.

  • Nitrogen, total [as N]: 5 limits, 31 violations of any kind.
  • Solids, total suspended: 5 limits, 4 violations of any kind.
  • BOD, carbonaceous [5 day, 20 C]: 5 limits, 4 violations of any kind.
  • pH: 2 limits, 4 violations of any kind.
  • Nitrogen, ammonia total [as N]: 48 limits.
  • E. coli: 4 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; 526 were issued before IA0057207.

Coverages issued nearest IA0057207

MARBLE ROCK CITY OF STP among its neighbors

Its county: 11, 2 major; IA0057207 is minor permit.

Other permits in the county

Identity

FacilityMARBLE ROCK CITY OF STP
PermitteeCITY OF MARBLE ROCK
NPDES IDIA0057207
StatusAdministratively continued
TypeIndividual permit
ClassMinor
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedMay 1, 2020
ExpiresApril 30, 2025
AgencySTA
AddressMarble Rock, IA 50653
Receiving water impaired303(D) Listed
NAICS221320 – Sewage Treatment Facilities
SIC4952 – Sewerage Systems

NPDES IA0057207: effluent limits and exceedances

MARBLE ROCK CITY OF STP (NPDES IA0057207): 7 pollutants on file, 7 limited; 4 with a violation of any kind, 0 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
Nitrogen, total [as N]5310
Solids, total suspended540
BOD, carbonaceous [5 day, 20 C]540
pH240
Nitrogen, ammonia total [as N]4800
E. coli400
Depth of pond or reservoir in feet300

NPDES IA0057207: inspections, violations and enforcement

NPDES IA0057207 (MARBLE ROCK CITY OF STP): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES IA0057207

NPDES IA0057207: 7 pollutant rows, 0 dated events; ICIS-NPDES download, loaded October 14, 2026.