Clean Water Act discharge permit · NPDES MS0024635
PORT GIBSON POTW, Port Gibson, MS: NPDES MS0024635 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
PORT GIBSON POTW holds NPDES permit MS0024635, which discharges to Little Bayou Pierre. EPA’s file records it issued March 7, 2017 and expiring February 28, 2022. 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 | PORT GIBSON POTW |
|---|---|
| Permittee as filed | PORT GIBSON POTW |
| NPDES ID | MS0024635 |
| 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 | March 7, 2017 |
| Expiration date | February 28, 2022 |
| Issuing agency | MDEQ |
| Address | Port Gibson, MS 39150 |
| Receiving water | LITTLE BAYOU PIERRE |
| Subwatershed | Chicago Branch-Little Bayou Pierre (HUC 080602030707) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 10Under a numeric limit
- 11With 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 2 | 15 | 13 | December 31, 2013 | 9,650% over the limit |
| Oxygen, dissolved [DO] | 1 | 9 | 6 | December 31, 2025 | 47% over the limit |
| BOD, 5-day, percent removal | 1 | 7 | 5 | December 31, 2015 | 186% over the limit |
| pH | 2 | 8 | 4 | December 31, 2011 | |
| Solids, suspended percent removal | 1 | 3 | 3 | December 31, 2015 | 284% over the limit |
| Solids, total suspended | 8 | 26 | 2 | December 31, 2008 | 10% over the limit |
| Chlorine, total residual | 2 | 8 | 2 | December 31, 2008 | 11% over the limit |
| E. coli | 0 | 1 | 1 | December 31, 2025 | 111% over the limit |
| BOD, 5-day, 20 deg. C | 8 | 32 | 0 | ||
| Nitrogen, ammonia total [as N] | 8 | 32 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 4 | 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 MS0024635.
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
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, MS0024635.
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 MS0024635 there.
Nearby on the register
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- Every permit record in Port Gibson, A to Z
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- Every permit record in Mississippi, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.