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Clean Water Act discharge permit · NPDES IN0024937

CARTHAGE WWTP, Carthage, IN: NPDES IN0024937 discharge permit, effluent exceedances, inspections, penalties

CARTHAGE WWTP holds NPDES permit IN0024937, which discharges to Big Blue R To Driftwood River. EPA’s file records it issued May 6, 2019 and expiring July 31, 2024.

CARTHAGE WWTP, Carthage, Indiana: Individual permit IN0024937; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued May 6, 2019, term to July 31, 2024, by IDEM; discharges to BIG BLUE R TO DRIFTWOOD RIVER.

  • Chlorine, total residual: 0 limits, 62 violations of any kind, 61 effluent exceedances, latest September 30, 2011, largest 3,967% over the limit.
  • Solids, total suspended: 4 limits, 37 violations of any kind, 21 effluent exceedances, latest January 31, 2006, largest 1,397% over the limit.
  • BOD, carbonaceous [5 day, 20 C]: 4 limits, 16 violations of any kind, 4 effluent exceedances, latest December 31, 2002, largest 12,497% over the limit.
  • pH: 2 limits, 7 violations of any kind, 1 effluent exceedance, latest September 30, 2001.
  • Flow, in conduit or thru treatment plant: 2 limits, 8 violations of any kind, 0 effluent exceedances.
  • BOD, carb-5 day, 20 deg C, percent removal: 1 limit, 5 violations of any kind, 0 effluent exceedances.
  • Solids, suspended percent removal: 1 limit, 5 violations of any kind, 0 effluent exceedances.
  • Flow, total: 1 limit, 4 violations of any kind, 0 effluent exceedances.
  • Flow, wastewater by-passing trtmnt plant: 0 limits, 3 violations of any kind, 0 effluent exceedances.
  • Nitrogen, ammonia total [as N]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
  • E. coli, colony forming units [CFU]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • August 11, 2026: Evaluation (S).
  • August 11, 2026: Evaluation (S).

Indiana holds 541 Publicly owned treatment works coverages of this permit type in EPA’s file; 291 were issued before IN0024937.

Coverages issued nearest IN0024937

CARTHAGE WWTP among its neighbors

EPA’s permit file holds 5 discharge permits in the Goose Creek-Big Blue River subwatershed (HUC 051202040108), IN0024937 among them. Its county holds 15, 1 of them major permits; IN0024937 is a minor permit.

Other permits in the Goose Creek-Big Blue River subwatershed (HUC 051202040108)

Identity

Facility as filedCARTHAGE WWTP
Permittee as filedCARTHAGE WWTP
NPDES IDIN0024937
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedMay 6, 2019
Expiration dateJuly 31, 2024
Issuing agencyIDEM
AddressCarthage, IN 46115
Receiving waterBIG BLUE R TO DRIFTWOOD RIVER
Receiving water impaired303(D) Listed
SubwatershedGoose Creek-Big Blue River (HUC 051202040108)
SIC4952 – Sewerage Systems

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Chlorine, total residual06261September 30, 20113,967% over the limit
Solids, total suspended43721January 31, 20061,397% over the limit
BOD, carbonaceous [5 day, 20 C]4164December 31, 200212,497% over the limit
pH271September 30, 2001
Flow, in conduit or thru treatment plant280
BOD, carb-5 day, 20 deg C, percent removal150
Solids, suspended percent removal150
Flow, total140
Flow, wastewater by-passing trtmnt plant030
Nitrogen, ammonia total [as N]400
E. coli, colony forming units [CFU]200

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0024937.

Inspections

DateWhat EPA recordedAgency
August 11, 2026EvaluationS
August 11, 2026EvaluationS

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES IN0024937.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

CARTHAGE WWTP, Carthage, IN, holds NPDES permit IN0024937, an individual permit for a minor, publicly owned treatment works discharging to Big Blue R To Driftwood River, with status shown as administratively continued. The page lists 4 pollutants under a numeric limit and 4 pollutants with an effluent exceedance, against a minor discharger class of 9. The permit was issued May 6, 2019 and expired July 31, 2024, as recorded in EPA's file when the page was loaded on October 14, 2026.