Clean Water Act discharge permit · NPDES IN0023761
MIDDLEBURY WWTP, Middlebury, IN: NPDES IN0023761 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 20Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
MIDDLEBURY WWTP, held by MIDDLEBURY WWTP, TOWN OF, holds NPDES permit IN0023761, which discharges to Lm/St Joe/Little Elkhart R/Unnmd Tr. EPA’s file records it issued December 29, 2016 and expiring May 31, 2022. 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 | MIDDLEBURY WWTP |
|---|---|
| Permittee as filed | MIDDLEBURY WWTP, TOWN OF |
| NPDES ID | IN0023761 |
| 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 | December 29, 2016 |
| Expiration date | May 31, 2022 |
| Issuing agency | IDEM |
| Address | Middlebury, IN 46540 |
| Receiving water | LM/ST JOE/LITTLE ELKHART R/UNNMD TR |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Mather Ditch-Little Elkhart River (HUC 040500011204) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 20Pollutants on file
- 20Under a numeric limit
- 12With a violation of any kind
- 4With 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 | 4 | 4 | June 30, 2014 | 200% over the limit |
| Solids, total suspended | 4 | 4 | 4 | April 30, 2014 | 184% over the limit |
| E. coli, colony forming units [CFU] | 3 | 2 | 1 | July 31, 2009 | 33% over the limit |
| Phosphorus, total [as P] | 1 | 2 | 1 | August 31, 2006 | 10% over the limit |
| Copper, dry weight | 2 | 1 | 0 | ||
| Cadmium, dry weight | 2 | 1 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 2 | 1 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 2 | 1 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 2 | 1 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 2 | 1 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 2 | 1 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 1 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Number of Events | 2 | 0 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 1 | 0 | 0 | ||
| Solids, suspended percent removal | 1 | 0 | 0 | ||
| Phosphorus, total percent removal | 1 | 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 IN0023761.
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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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID IN0023761 there.
Nearby on the register
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- Every permit record in Indiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.