Clean Water Act discharge permit · NPDES IN0023124

HUNTINGBURG MUNICIPAL WWTP, Huntingburg, IN: NPDES IN0023124 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MajorDischarger class
12Pollutants under a numeric limit
8Pollutants with an effluent exceedance
1Inspections on file
0Formal enforcement actions

HUNTINGBURG MUNICIPAL WWTP, held by HUNTINGBURG WWTP, holds NPDES permit IN0023124, which discharges to Patoka R Via Hunley Creek Trib. EPA’s file records it issued February 9, 2022 and expiring February 28, 2027.

HUNTINGBURG MUNICIPAL WWTP, Huntingburg, Indiana: Individual permit IN0023124, held by HUNTINGBURG WWTP; Publicly owned treatment works; Effective; issued February 9, 2022, term to February 28, 2027, by IDEM; discharges to PATOKA R VIA HUNLEY CREEK TRIB.

Nitrogen, ammonia total [as N]: 8 limits, 27 violations of any kind, 9 effluent exceedances, latest July 31, 2026, largest 280% over the limit.
Solids, total suspended: 8 limits, 26 violations of any kind, 2 effluent exceedances, latest July 31, 2025, largest 96% over the limit.
BOD, carbonaceous [5 day, 20 C]: 8 limits, 16 violations of any kind, 2 effluent exceedances, latest May 31, 2006, largest 22% over the limit.
Oxygen, dissolved [DO]: 2 limits, 9 violations of any kind, 1 effluent exceedance, latest June 30, 2026, largest 52% over the limit.
Chlorine, total residual: 2 limits, 5 violations of any kind, 1 effluent exceedance, latest July 31, 2007, largest 533% over the limit.
Phosphorus, total [as P]: 2 limits, 1 violation of any kind, 1 effluent exceedance, latest April 30, 2026, largest 10% over the limit.
E. coli, MTEC-MF: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest July 31, 1998, largest 17% over the limit.
Molybdenum, sludge, total, dry weight [as Mo]: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest January 31, 2002, largest 692% over the limit.
Flow, in conduit or thru treatment plant: 1 limit, 9 violations of any kind, 0 effluent exceedances.
pH: 2 limits, 8 violations of any kind, 0 effluent exceedances.
E. coli, colony forming units [CFU]: 3 limits, 4 violations of any kind, 0 effluent exceedances.
Flow, total: 1 limit, 3 violations of any kind, 0 effluent exceedances.
Mercury, total recoverable: 0 limits, 3 violations of any kind, 0 effluent exceedances.
Flow, wastewater by-passing trtmnt plant: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Nitrogen, total [as N]: 2 limits, 1 violation of any kind, 0 effluent exceedances.
Bypass valve: 0 limits, 1 violation of any kind, 0 effluent exceedances.
Number of Events: 2 limits, 0 violations of any kind, 0 effluent exceedances.

August 25, 2026: Effluent Violations - Numeric effluent violation (ST6).
August 25, 2026: Evaluation (S).
August 25, 2026: Notice of Noncompliance Issued (State).

Indiana holds 541 Publicly owned treatment works coverages of this permit type in EPA’s file; 535 were issued before IN0023124. HUNTINGBURG WWTP holds 2 permits in Indiana.

Other permits held by HUNTINGBURG WWTP

HUNTINGBURG WWTP, Huntingburg: INL023124, issued January 1, 2021

Coverages issued nearest IN0023124

May 20, 2021: KENDALLVILLE WWTP, Kendallville, IN0020656
June 23, 2021: NEW CASTLE WWTP, New Castle, IN0023914
July 8, 2021: DANA WWTP, Dana, IN0063843, held by DANA WWTP, TOWN OF
August 6, 2021: BATESVILLE WWTP, CITY OF, Huntersville, IN0039268
October 20, 2021: FALL CREEK REGIONAL WASTE DISTRICT, Pendleton, IN0049026
February 9, 2022: CANNELTON WASTEWATER TREATMENT PLANT, Cannelton, IN0064913, held by CANNELTON WWTP
March 31, 2022: ROCKPORT NORTH WASTEWATER TREATMENT PLANT, Rockport, IN0061662, held by ROCKPORT NORTH WWTP
April 12, 2022: WESTVILLE WWTP, Westville, IN0024848, held by WESTVILLE MUNICIPAL WWTP
December 30, 2022: CHARLESTOWN MUNICIPAL WWTP, Charlestown, IN0020508, held by CHARLESTOWN WASTEWATER TREATMENT PLANT
February 6, 2026: DEARBORN COUNTY RSD - GULIFORD WWTP, Lawrenceburg, IN0064949, held by Dearborn County Regional Sewer District

HUNTINGBURG MUNICIPAL WWTP among its neighbors

EPA’s permit file holds 12 discharge permits in the Bruner Creek subwatershed (HUC 051202090302), IN0023124 among them. Its county holds 50, 2 of them major permits; IN0023124 is a major permit.

Other permits in the Bruner Creek subwatershed (HUC 051202090302)

CENTERPOINT ENERGY COMPANY (CPEC): HOLLAND SUBSTATION BUILD PROJECT, Holland: INRA16237, minor permit, permit term to June 12, 2030
CITY OF HUNTINGBURG WASTEWATER UTILITY IMPROVEMENTS PROJECT - DIVISION A AND B, Huntingburg: INRA12681, minor permit, permit term to October 11, 2028
CROSSVINE SOLAR AND BESS, Holland: INRA17700, minor permit, permit term to March 5, 2031
DOLLAR GENERAL 31481 - HOLLAND, Holland: INRA15943, minor permit, permit term to May 4, 2030
DUBOIS WOOD PRODUCTS INC, Huntingburg: INRM01641, minor permit, permit term to July 21, 2024
HNB TERMINAL BUILDING CONSTRUCTION, Huntingburg: INRA14782, minor permit, permit term to October 6, 2029
HUNTINGBURG ELEMENTARY SCHOOL ADDITION & RENOVATION 2024, Huntingburg: INRA15392, minor permit, permit term to February 10, 2030
HUNTINGBURG SOCCER FIELDS, Huntingburg: INRA07387, minor permit, permit term to April 19, 2026
HUNTINGBURG WWTP, Huntingburg: INL023124, minor permit, permit term to December 31, 2025
SOUTHWEST DUBOIS COUNTY SCHOOLS BUILDING DEMOLITION 2023, Huntingburg: INRA11194, minor permit, permit term to January 29, 2028

Identity

Facility as filed	HUNTINGBURG MUNICIPAL WWTP
Permittee as filed	HUNTINGBURG WWTP
NPDES ID	IN0023124
Permit status	Effective
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	February 9, 2022
Expiration date	February 28, 2027
Issuing agency	IDEM
Address	Huntingburg, IN 47542
Receiving water	PATOKA R VIA HUNLEY CREEK TRIB
Receiving water impaired	303(D) Listed
Subwatershed	Bruner Creek (HUC 051202090302)

Effluent limits and exceedances

17Pollutants on file
12Under a numeric limit
16With a violation of any kind
8With an effluent exceedance

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 measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Nitrogen, ammonia total [as N]	8	27	9	July 31, 2026	280% over the limit
Solids, total suspended	8	26	2	July 31, 2025	96% over the limit
BOD, carbonaceous [5 day, 20 C]	8	16	2	May 31, 2006	22% over the limit
Oxygen, dissolved [DO]	2	9	1	June 30, 2026	52% over the limit
Chlorine, total residual	2	5	1	July 31, 2007	533% over the limit
Phosphorus, total [as P]	2	1	1	April 30, 2026	10% over the limit
E. coli, MTEC-MF	0	1	1	July 31, 1998	17% over the limit
Molybdenum, sludge, total, dry weight [as Mo]	0	1	1	January 31, 2002	692% over the limit
Flow, in conduit or thru treatment plant	1	9	0
pH	2	8	0
E. coli, colony forming units [CFU]	3	4	0
Flow, total	1	3	0
Mercury, total recoverable	0	3	0
Flow, wastewater by-passing trtmnt plant	0	2	0
Nitrogen, total [as N]	2	1	0
Bypass valve	0	1	0
Number of Events	2	0	0

Inspections, violations and enforcement

1Single-event violations

Date	What EPA recorded	Agency
August 25, 2026	Effluent Violations - Numeric effluent violation	ST6

Inspections

Date	What EPA recorded	Agency
August 25, 2026	Evaluation	S

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

Date	What EPA recorded	Agency
August 25, 2026	Notice of Noncompliance Issued	State

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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers Clean Water Act NPDES permit IN0023124 for the HUNTINGBURG MUNICIPAL WWTP in Huntingburg, IN, held by HUNTINGBURG WWTP and listed as Effective with a Major Discharger class. The page lists 12 pollutants under a numeric limit, 8 pollutants with an effluent exceedance, and 17 pollutants on file, of which 16 carry a violation of any kind.