Clean Water Act discharge permit · NPDES IN0109924
HARBORTOWN WWTP, Mount Vernon, IN: NPDES IN0109924 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
HARBORTOWN WWTP, held by HARBORTOWN SUBDIVISION, holds NPDES permit IN0109924, which discharges to Or/Mcfadden Creek/Unnamed Tributary. EPA’s file records it issued June 24, 2016 and expiring July 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | HARBORTOWN WWTP |
|---|---|
| Permittee as filed | HARBORTOWN SUBDIVISION |
| NPDES ID | IN0109924 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 24, 2016 |
| Expiration date | July 31, 2021 |
| Issuing agency | IDEM |
| Address | Mount Vernon, IN 47620 |
| Receiving water | OR/MCFADDEN CREEK/UNNAMED TRIBUTARY |
| Subwatershed | McFadden Creek (HUC 051402020604) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 12Under a numeric limit
- 12With a violation of any kind
- 8With 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 | 319 | 71 | March 31, 2020 | 6,466% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 297 | 45 | March 31, 2020 | 385% over the limit |
| Oxygen, dissolved [DO] | 2 | 81 | 18 | March 31, 2020 | 95% over the limit |
| Solids, total suspended | 8 | 269 | 17 | January 31, 2020 | 263% over the limit |
| BOD, carb-5 day, 20 deg C, percent removal | 1 | 36 | 10 | September 30, 2019 | 297% over the limit |
| Chlorine, total residual | 4 | 172 | 8 | August 31, 2019 | 10,133% over the limit |
| E. coli, colony forming units [CFU] | 3 | 101 | 8 | September 30, 2019 | 4,155% over the limit |
| Solids, suspended percent removal | 1 | 30 | 4 | June 30, 2019 | 131% over the limit |
| pH | 2 | 126 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 64 | 0 | ||
| Flow, total | 1 | 63 | 0 | ||
| Number of Events | 2 | 34 | 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 IN0109924.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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
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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 IN0109924 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.