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NPDES ILG640232 · Clean Water Act

EUREKA WTP, CITY OF, Eureka, IL: NPDES ILG640232 discharge permit, effluent exceedances, inspections, penalties

EUREKA WTP, CITY OF, Eureka, Illinois: General permit coverage ILG640232, held by EUREKA, CITY OF; Administratively continued; issued June 7, 2012, term to April 30, 2017; discharges to WALNUT CREEK.

  • pH: 2 limits, 171 violations of any kind, 165 effluent exceedances, latest July 31, 2026.
  • Chlorine, total residual: 1 limit, 39 violations of any kind, 36 effluent exceedances, latest July 31, 2026, largest 2,240% over the limit.
  • Solids, total suspended: 2 limits, 6 violations of any kind.
  • Iron, total [as Fe]: 2 limits, 6 violations of any kind.
  • Flow, in conduit or thru treatment plant: 2 limits, 6 violations of any kind.

Other permits held by EUREKA, CITY OF

EUREKA WTP, CITY OF among its neighbors

6 discharge permits are in the Mill Creek-Walnut Creek subwatershed (HUC 071300040602); ILG640232 is one. Its county: 52, 0 major; ILG640232 is minor permit.

Other permits in the Mill Creek-Walnut Creek subwatershed (HUC 071300040602)

Identity

FacilityEUREKA WTP, CITY OF
PermitteeEUREKA, CITY OF
NPDES IDILG640232
StatusAdministratively continued
TypeGeneral permit coverage
ClassMinor
Facility typeNon-POTW
IssuedJune 7, 2012
ExpiresApril 30, 2017
AddressEureka, IL 61530
Receiving waterWALNUT CREEK
SubwatershedMill Creek-Walnut Creek (HUC 071300040602)
SIC4941 – Water Supply

NPDES ILG640232: effluent limits and exceedances

EUREKA WTP, CITY OF (NPDES ILG640232): 5 pollutants on file, 5 limited; 5 with a violation of any kind, 2 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
pH2171165July 31, 2026
Chlorine, total residual13936July 31, 20262,240% over the limit
Solids, total suspended260
Iron, total [as Fe]260
Flow, in conduit or thru treatment plant260

NPDES ILG640232: inspections, violations and enforcement

NPDES ILG640232 (EUREKA WTP, CITY OF): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES ILG640232

NPDES ILG640232: 5 pollutant rows, 0 dated events; ICIS-NPDES download, loaded October 14, 2026.