Clean Water Act discharge permit · NPDES IN0040177
KNIGHTSTOWN WWTP, Knightstown, IN: NPDES IN0040177 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
KNIGHTSTOWN WWTP holds NPDES permit IN0040177, which discharges to Big Blue River To Driftwood River. EPA’s file records it issued April 2, 2018 and expiring June 30, 2023. 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 | KNIGHTSTOWN WWTP |
|---|---|
| Permittee as filed | KNIGHTSTOWN WWTP |
| NPDES ID | IN0040177 |
| 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 2, 2018 |
| Expiration date | June 30, 2023 |
| Issuing agency | IDEM |
| Address | Knightstown, IN 46148 |
| Receiving water | BIG BLUE RIVER TO DRIFTWOOD RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Goose Creek-Big Blue River (HUC 051202040108) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 8Under a numeric limit
- 12With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 4 | 49 | 13 | March 31, 2026 | 1,038% over the limit |
| E. coli, colony forming units [CFU] | 3 | 31 | 13 | April 30, 2021 | 26,794% over the limit |
| Solids, suspended percent removal | 0 | 11 | 3 | April 30, 2018 | 209% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 21 | 1 | February 28, 2019 | 10% over the limit |
| pH | 2 | 20 | 1 | January 31, 2006 | |
| BOD, carbonaceous [5 day, 20 C] | 4 | 36 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 17 | 0 | ||
| Oil & Grease | 0 | 8 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 0 | 8 | 0 | ||
| Flow, total | 1 | 6 | 0 | ||
| Number of Events | 2 | 3 | 0 | ||
| Flow, wastewater by-passing trtmnt plant | 0 | 3 | 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 IN0040177.
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.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, IN0040177.
Start the watch
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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 IN0040177 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.