Clean Water Act discharge permit · NPDES IN0003921
MOUNT VERNON WATER WORKS, Mount Vernon, IN: NPDES IN0003921 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
MOUNT VERNON WATER WORKS, held by MT VERNON PUBLIC WATER WORKS, holds NPDES permit IN0003921, which discharges to Ohio River. EPA’s file records it issued July 10, 2019 and expiring December 31, 2024. 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 | MOUNT VERNON WATER WORKS |
|---|---|
| Permittee as filed | MT VERNON PUBLIC WATER WORKS |
| NPDES ID | IN0003921 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 10, 2019 |
| Expiration date | December 31, 2024 |
| Issuing agency | IDEM |
| Address | Mount Vernon, IN 47620 |
| Receiving water | OHIO RIVER |
| Subwatershed | Beaverdam Creek-Ohio River (HUC 051402020605) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 5Pollutants on file
- 5Under a numeric limit
- 5With a violation of any kind
- 3With 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 | 2 | 158 | 138 | June 30, 2017 | 6,900% over the limit |
| Chlorine, total residual | 2 | 80 | 65 | September 30, 2022 | 3,167% over the limit |
| pH | 2 | 41 | 2 | November 30, 2002 | |
| Flow, in conduit or thru treatment plant | 2 | 67 | 0 | ||
| Flow, total | 1 | 11 | 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 IN0003921.
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, IN0003921.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 IN0003921 there.
Nearby on the register
- Discharge permits in Mount Vernon
- Every permit record in Mount Vernon, A to Z
- Discharge permits in Indiana
- Every permit record in Indiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.