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NPDES IN0039853 · Clean Water Act

CLARKS HILL MUNICIPAL WWTP, Clarks Hill, IN: NPDES IN0039853 discharge permit, effluent exceedances, inspections, penalties

CLARKS HILL MUNICIPAL WWTP, Clarks Hill, Indiana: Individual permit IN0039853; Publicly owned treatment works; Administratively continued; issued April 9, 2020, term to May 31, 2025, by IDEM; discharges to WILDCAT CR S FK VIA LAURAMIE CR TRI.

  • Nitrogen, ammonia total [as N]: 8 limits, 94 violations of any kind, 88 effluent exceedances, latest July 31, 2026, largest 1,528% over the limit.
  • Chlorine, total residual: 4 limits, 36 violations of any kind, 31 effluent exceedances, latest June 30, 2026, largest 783% over the limit.
  • Phosphorus, total [as P]: 3 limits, 14 violations of any kind, 13 effluent exceedances, latest June 30, 2023, largest 403% over the limit.
  • BOD, carbonaceous [5 day, 20 C]: 4 limits, 14 violations of any kind, 8 effluent exceedances, latest November 30, 2025, largest 102% over the limit.
  • Solids, suspended percent removal: 1 limit, 4 violations of any kind, 3 effluent exceedances, latest August 31, 2022, largest 567% over the limit.
  • Solids, total suspended: 4 limits, 8 violations of any kind, 2 effluent exceedances, latest April 30, 2026, largest 23% over the limit.
  • BOD, carb-5 day, 20 deg C, percent removal: 1 limit, 3 violations of any kind, 2 effluent exceedances, latest May 31, 2022, largest 567% over the limit.
  • E. coli, colony forming units [CFU]: 2 limits, 3 violations of any kind, 1 effluent exceedance, latest June 30, 2022, largest 86% over the limit.
  • Oxygen, dissolved [DO]: 2 limits, 5 violations of any kind.
  • pH: 2 limits, 4 violations of any kind.
  • Flow, total: 1 limit, 3 violations of any kind.
  • Flow, in conduit or thru treatment plant: 1 limit, 2 violations of any kind.

Indiana holds 541 Publicly owned treatment works coverages of this permit type in EPA’s file; 393 were issued before IN0039853.

Coverages issued nearest IN0039853

CLARKS HILL MUNICIPAL WWTP among its neighbors

20 discharge permits are in the Lauramie Creek subwatershed (HUC 051201070309); IN0039853 is one. Its county: 90, 6 major; IN0039853 is minor permit.

Other permits in the Lauramie Creek subwatershed (HUC 051201070309)

Identity

FacilityCLARKS HILL MUNICIPAL WWTP
PermitteeCLARKS HILL MUNICIPAL WWTP
NPDES IDIN0039853
StatusAdministratively continued
TypeIndividual permit
ClassMinor
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedApril 9, 2020
ExpiresMay 31, 2025
AgencyIDEM
AddressClarks Hill, IN 47930
Receiving waterWILDCAT CR S FK VIA LAURAMIE CR TRI
Receiving water impaired303(D) Listed
SubwatershedLauramie Creek (HUC 051201070309)
SIC4952 – Sewerage Systems

NPDES IN0039853: effluent limits and exceedances

CLARKS HILL MUNICIPAL WWTP (NPDES IN0039853): 12 pollutants on file, 12 limited; 12 with a violation of any kind, 8 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
Nitrogen, ammonia total [as N]89488July 31, 20261,528% over the limit
Chlorine, total residual43631June 30, 2026783% over the limit
Phosphorus, total [as P]31413June 30, 2023403% over the limit
BOD, carbonaceous [5 day, 20 C]4148November 30, 2025102% over the limit
Solids, suspended percent removal143August 31, 2022567% over the limit
Solids, total suspended482April 30, 202623% over the limit
BOD, carb-5 day, 20 deg C, percent removal132May 31, 2022567% over the limit
E. coli, colony forming units [CFU]231June 30, 202286% over the limit
Oxygen, dissolved [DO]250
pH240
Flow, total130
Flow, in conduit or thru treatment plant120

NPDES IN0039853: inspections, violations and enforcement

NPDES IN0039853 (CLARKS HILL MUNICIPAL WWTP): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES IN0039853

NPDES IN0039853: 12 pollutant rows, 0 dated events; ICIS-NPDES download, loaded October 14, 2026.