Clean Water Act discharge permit · NPDES IN0055131

SOUTH HENRY RWD WWTP, Lewisville, IN: NPDES IN0055131 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
20Pollutants under a numeric limit
2Pollutants with an effluent exceedance
1Inspections on file
0Formal enforcement actions

SOUTH HENRY RWD WWTP, held by SOUTH HENRY REGIONAL WASTE DISTRICT, holds NPDES permit IN0055131, which discharges to E Fk White R Via Flatrock R. EPA’s file records it issued April 28, 2021 and expiring August 31, 2026.

SOUTH HENRY RWD WWTP, Lewisville, Indiana: Individual permit IN0055131, held by SOUTH HENRY REGIONAL WASTE DISTRICT; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued April 28, 2021, term to August 31, 2026, by IDEM; discharges to E FK WHITE R VIA FLATROCK R.

Nitrogen, ammonia total [as N]: 8 limits, 8 violations of any kind, 3 effluent exceedances, latest May 31, 2026, largest 81% over the limit.
E. coli, colony forming units [CFU]: 3 limits, 3 violations of any kind, 1 effluent exceedance, latest June 30, 2021, largest 192% over the limit.
BOD, carbonaceous [5 day, 20 C]: 4 limits, 9 violations of any kind, 0 effluent exceedances.
Solids, total suspended: 4 limits, 8 violations of any kind, 0 effluent exceedances.
Number of Events: 2 limits, 7 violations of any kind, 0 effluent exceedances.
Oxygen, dissolved [DO]: 1 limit, 4 violations of any kind, 0 effluent exceedances.
pH: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 1 limit, 2 violations of any kind, 0 effluent exceedances.
Flow, total: 1 limit, 2 violations of any kind, 0 effluent exceedances.
Toxicity [acute], Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Toxicity [chronic], Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Toxicity [acute], Pimephales promelas [Fathead Minnow]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Toxicity [chronic], Pimephales promelas [Fathead Minnow]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Copper, dry weight: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Cadmium, dry weight: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Molybdenum, sludge, total, dry weight [as Mo]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Zinc, sludge, total, dry weight [as Zn]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Lead, sludge, total, dry weight [as Pb]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Nickel, sludge, total, dry weight [as Ni]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Mercury, sludge, total, dry weight [as Hg]: 1 limit, 0 violations of any kind, 0 effluent exceedances.

May 11, 2026: Evaluation (S).

Indiana holds 541 Publicly owned treatment works coverages of this permit type in EPA’s file; 523 were issued before IN0055131.

Coverages issued nearest IN0055131

April 15, 2021: JASPER WWTP, Jasper, IN0020834, held by JASPER MUNICIPAL WWTP
April 15, 2021: DARLINGTON MUNICIPAL WWTP, Darlington, IN0022721
April 15, 2021: GOSHEN WWTP, Goshen, IN0025755, held by GOSHEN WWTP
April 21, 2021: PONETO WWTP, Poneto, IN0059048
April 28, 2021: ANDREWS WWTP, TOWN OF, Andrews, IN0022268
May 5, 2021: BRIARWOOD SUBDIVISION, Bedford, IN0038920, held by BRIARWOOD SUBDIVISION WWTP
May 13, 2021: LAPEL WWTP, Lapel, IN0020087
May 13, 2021: WINFIELD WWTP, Crown Point, IN0058343, held by WINFIELD WWTP
May 13, 2021: METAMORA RSD WWTP, Metamora, IN0062391
May 13, 2021: HOLTON WWTP, TOWN OF, Holton, IN0109703

SOUTH HENRY RWD WWTP among its neighbors

EPA’s permit file holds 6 discharge permits in the Rock Branch-Flatrock River subwatershed (HUC 051202050102), IN0055131 among them. Its county holds 32, 2 of them major permits; IN0055131 is a minor permit.

Other permits in the Rock Branch-Flatrock River subwatershed (HUC 051202050102)

GREDE LLC, New Castle: INRM00058, minor permit, discharging to Foster Ditch, permit term to August 22, 2024
MILCO DAIRY, Lewisville: INRA17032, minor permit, permit term to October 20, 2030
SKY CASTLE AIRPORT HENRY COUNTY MARLATT FIELD, New Castle: INRA09995, minor permit, permit term to June 22, 2027
TS TECH SOLAR DRAINAGE IMPROVEMENTS, New Castle: INRA09861, minor permit, permit term to June 5, 2027
WATER FACILITIES IMPROVEMENTS PROJECT, Lewisville: INRA06834, minor permit, permit term to December 27, 2025

Identity

Facility as filed	SOUTH HENRY RWD WWTP
Permittee as filed	SOUTH HENRY REGIONAL WASTE DISTRICT
NPDES ID	IN0055131
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	April 28, 2021
Expiration date	August 31, 2026
Issuing agency	IDEM
Address	Lewisville, IN 47352
Receiving water	E FK WHITE R VIA FLATROCK R
Subwatershed	Rock Branch-Flatrock River (HUC 051202050102)

Effluent limits and exceedances

20Pollutants on file
20Under a numeric limit
9With a violation of any kind
2With 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	8	3	May 31, 2026	81% over the limit
E. coli, colony forming units [CFU]	3	3	1	June 30, 2021	192% over the limit
BOD, carbonaceous [5 day, 20 C]	4	9	0
Solids, total suspended	4	8	0
Number of Events	2	7	0
Oxygen, dissolved [DO]	1	4	0
pH	2	2	0
Flow, in conduit or thru treatment plant	1	2	0
Flow, total	1	2	0
Toxicity [acute], Ceriodaphnia dubia	2	0	0
Toxicity [chronic], Ceriodaphnia dubia	2	0	0
Toxicity [acute], Pimephales promelas [Fathead Minnow]	2	0	0
Toxicity [chronic], Pimephales promelas [Fathead Minnow]	2	0	0
Copper, dry weight	1	0	0
Cadmium, dry weight	1	0	0
Molybdenum, sludge, total, dry weight [as Mo]	1	0	0
Zinc, sludge, total, dry weight [as Zn]	1	0	0
Lead, sludge, total, dry weight [as Pb]	1	0	0
Nickel, sludge, total, dry weight [as Ni]	1	0	0
Mercury, sludge, total, dry weight [as Hg]	1	0	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0055131.

Inspections

Date	What EPA recorded	Agency
May 11, 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

EPA’s informal enforcement file holds no action for NPDES IN0055131.

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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 IN0055131 for the SOUTH HENRY RWD WWTP in Lewisville, IN, held by SOUTH HENRY REGIONAL WASTE DISTRICT, and lists its status as Administratively continued with a Minor Discharger class. The page reports 20 pollutants, 2 of which are under a numeric limit and 2 of which show an effluent exceedance, within the HUC 051202050102 subwatershed.