Clean Water Act discharge permit · NPDES IN0023582
LIGONIER WWTP, Ligonier, IN: NPDES IN0023582 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 34Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
LIGONIER WWTP, held by LIGONIER WASTEWATER TREATMENT PLANT, holds NPDES permit IN0023582, which discharges to Elkhart R To St Joseph River. EPA’s file records it issued January 12, 2021 and expiring February 28, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | LIGONIER WWTP |
|---|---|
| Permittee as filed | LIGONIER WASTEWATER TREATMENT PLANT |
| NPDES ID | IN0023582 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | January 12, 2021 |
| Expiration date | February 28, 2026 |
| Issuing agency | IDEM |
| Address | Ligonier, IN 46767 |
| Receiving water | ELKHART R TO ST JOSEPH RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Indian Lake-Elkhart River (HUC 040500011802) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 59Pollutants on file
- 34Under a numeric limit
- 50With a violation of any kind
- 10With 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 |
|---|---|---|---|---|---|
| E. coli, colony forming units [CFU] | 3 | 23 | 22 | June 30, 2025 | 26,794% over the limit |
| Silver total recoverable | 6 | 16 | 16 | July 31, 2026 | 240% over the limit |
| Nitrogen, ammonia total [as N] | 8 | 30 | 10 | February 29, 2008 | 83% over the limit |
| Mercury, total recoverable | 3 | 10 | 10 | April 30, 2021 | 147% over the limit |
| Solids, total suspended | 4 | 24 | 8 | February 28, 2026 | 610% over the limit |
| Phosphorus, total percent removal | 1 | 12 | 8 | May 31, 2011 | 125% over the limit |
| Oxygen, dissolved [DO] | 2 | 11 | 6 | July 31, 2003 | 50% over the limit |
| Phosphorus, total [as P] | 2 | 8 | 3 | September 30, 2024 | 10% over the limit |
| pH | 2 | 11 | 1 | December 31, 2019 | |
| Chlorine, total residual | 0 | 3 | 1 | July 31, 1999 | 17% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 20 | 0 | ||
| Cyanide, free [amenable to chlorination] | 6 | 10 | 0 | ||
| Chloride [as Cl] | 6 | 10 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 10 | 0 | ||
| Cadmium, total [as Cd] | 0 | 10 | 0 | ||
| Chromium, total [as Cr] | 0 | 10 | 0 | ||
| Copper, total [as Cu] | 0 | 10 | 0 | ||
| Lead, total [as Pb] | 0 | 10 | 0 | ||
| Nickel, total [as Ni] | 0 | 10 | 0 | ||
| Silver, total [as Ag] | 0 | 10 | 0 | ||
| Zinc, total [as Zn] | 0 | 10 | 0 | ||
| Copper, dry weight | 2 | 5 | 0 | ||
| Cadmium, dry weight | 2 | 5 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 2 | 5 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 2 | 5 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 2 | 5 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 2 | 5 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 3 | 4 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 3 | 4 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 3 | 4 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 3 | 4 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 2 | 4 | 0 | ||
| Arsenic, dry weight | 0 | 3 | 0 | ||
| Selenium, dry weight | 0 | 3 | 0 | ||
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | 0 | 3 | 0 | ||
| LC50 Static Renewal 96Hr Acute Pimephales promelas | 0 | 3 | 0 | ||
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | 0 | 3 | 0 | ||
| Noel Statre 7Day Chronic Pimephales | 0 | 3 | 0 | ||
| Number of Events | 2 | 2 | 0 | ||
| Level of pathogen requirements achieved | 0 | 2 | 0 | ||
| Description of pathogen option used | 0 | 2 | 0 | ||
| Vector attraction reduction alternative used | 0 | 2 | 0 | ||
| Ann. amt sludge disposed by other method | 0 | 1 | 0 | ||
| Annual amt of sludge incinerated | 0 | 1 | 0 | ||
| Annual sludge production, total | 0 | 1 | 0 | ||
| Annual amount of sludge land applied | 0 | 1 | 0 | ||
| Annual amt. sludge disposed surface unit | 0 | 1 | 0 | ||
| Annual amt sludge disposed in landfill | 0 | 1 | 0 | ||
| Annual amt sludge transported interstate | 0 | 1 | 0 | ||
| Pollutant table from 503.13 | 0 | 1 | 0 | ||
| Cyanide, free [as free] | 6 | 0 | 0 | ||
| Nickel, total recoverable | 6 | 0 | 0 | ||
| Zinc, total recoverable | 6 | 0 | 0 | ||
| Cadmium, total recoverable | 6 | 0 | 0 | ||
| Lead, total recoverable | 6 | 0 | 0 | ||
| Chromium, total recoverable | 6 | 0 | 0 | ||
| Copper, total recoverable | 6 | 0 | 0 | ||
| Nitrogen, total [as N] | 2 | 0 | 0 | ||
| Flow, total | 1 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0023582.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.