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NPDES IN0040118 · Clean Water Act

HILLSBORO MUNICIPAL WWTP, Hillsboro, IN: NPDES IN0040118 discharge permit, effluent exceedances, inspections, penalties

HILLSBORO MUNICIPAL WWTP, Hillsboro, Indiana: Individual permit IN0040118; Publicly owned treatment works; Administratively continued; issued May 22, 2019, term to September 30, 2024, by IDEM; discharges to COAL CR (E FK) TO WABASH RIVER.

2 of the 12 pollutants listed for NPDES IN0040118 have no violation or effluent exceedance.

  • E. coli, colony forming units [CFU]: 3 limits, 14 violations of any kind, 12 effluent exceedances, latest October 31, 2007, largest 930% over the limit.
  • Chlorine, total residual: 4 limits, 6 violations of any kind, 2 effluent exceedances, latest October 31, 2025, largest 733% over the limit.
  • Solids, total suspended: 4 limits, 12 violations of any kind.
  • BOD, carbonaceous [5 day, 20 C]: 4 limits, 12 violations of any kind.
  • pH: 2 limits, 6 violations of any kind.
  • Flow, in conduit or thru treatment plant: 1 limit, 6 violations of any kind.
  • BOD, carb-5 day, 20 deg C, percent removal: 0 limits, 3 violations of any kind.
  • Solids, suspended percent removal: 0 limits, 3 violations of any kind.
  • Flow, wastewater by-passing trtmnt plant: 0 limits, 2 violations of any kind.
  • Flow, total: 1 limit, 1 violation of any kind.
  • Nitrogen, ammonia total [as N]: 4 limits.
  • Number of Events: 2 limits.
  • February 4, 2026: Evaluation (S).
  • February 4, 2026: Evaluation (S).

Indiana holds 541 Publicly owned treatment works coverages of this permit type in EPA’s file; 297 were issued before IN0040118.

Coverages issued nearest IN0040118

HILLSBORO MUNICIPAL WWTP among its neighbors

3 discharge permits are in the Rose Cemetary-East Fork Coal Creek subwatershed (HUC 051201080707); IN0040118 is one. Its county: 20, 0 major; IN0040118 is minor permit.

Other permits in the Rose Cemetary-East Fork Coal Creek subwatershed (HUC 051201080707)

Identity

FacilityHILLSBORO MUNICIPAL WWTP
PermitteeHILLSBORO MUNICIPAL WWTP
NPDES IDIN0040118
StatusAdministratively continued
TypeIndividual permit
ClassMinor
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedMay 22, 2019
ExpiresSeptember 30, 2024
AgencyIDEM
AddressHillsboro, IN 47949
Receiving waterCOAL CR (E FK) TO WABASH RIVER
SubwatershedRose Cemetary-East Fork Coal Creek (HUC 051201080707)
SIC4952 – Sewerage Systems

NPDES IN0040118: effluent limits and exceedances

HILLSBORO MUNICIPAL WWTP (NPDES IN0040118): 12 pollutants on file, 9 limited; 10 with a violation of any kind, 2 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
E. coli, colony forming units [CFU]31412October 31, 2007930% over the limit
Chlorine, total residual462October 31, 2025733% over the limit
Solids, total suspended4120
BOD, carbonaceous [5 day, 20 C]4120
pH260
Flow, in conduit or thru treatment plant160
BOD, carb-5 day, 20 deg C, percent removal030
Solids, suspended percent removal030
Flow, wastewater by-passing trtmnt plant020
Flow, total110
Nitrogen, ammonia total [as N]400
Number of Events200

NPDES IN0040118: inspections, violations and enforcement

NPDES IN0040118: 2 inspections

DateWhat EPA recordedAgency
February 4, 2026EvaluationS
February 4, 2026EvaluationS

NPDES IN0040118 (HILLSBORO MUNICIPAL WWTP): no single-event violation, formal enforcement action and informal enforcement action on file.

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Permits near NPDES IN0040118

NPDES IN0040118: 12 pollutant rows, 2 dated events; ICIS-NPDES download, loaded October 14, 2026.