Clean Water Act discharge permit · NPDES MS0061221
S20 D'IBERVILLE WWTF AND TRANSMISSION SYSTEM, D'Iberville, MS: NPDES MS0061221 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 13Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
S20 D'IBERVILLE WWTF AND TRANSMISSION SYSTEM, held by HARRISON CO UTIL AUTH, S20 D'IBERVILLE WWTF AND TRANSMISSION SYSTEM, holds NPDES permit MS0061221, which discharges to Tchoutacabouffa River. EPA’s file records it issued August 29, 2019 and expiring July 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 | S20 D'IBERVILLE WWTF AND TRANSMISSION SYSTEM |
|---|---|
| Permittee as filed | HARRISON CO UTIL AUTH, S20 D'IBERVILLE WWTF AND TRANSMISSION SYSTEM |
| NPDES ID | MS0061221 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | August 29, 2019 |
| Expiration date | July 31, 2024 |
| Issuing agency | MDEQ |
| Address | D'Iberville, MS 39533 |
| Receiving water | TCHOUTACABOUFFA RIVER |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 14Pollutants on file
- 13Under a numeric limit
- 13With a violation of any kind
- 1With 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 | 50 | 2 | June 30, 2026 | 137% over the limit |
| BOD, 5-day, 20 deg. C | 8 | 48 | 0 | ||
| Solids, total suspended | 8 | 48 | 0 | ||
| Nitrogen, total [as N] | 8 | 32 | 0 | ||
| Phosphorus, total [as P] | 8 | 32 | 0 | ||
| pH | 4 | 24 | 0 | ||
| Oxygen, dissolved [DO] | 3 | 18 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 12 | 0 | ||
| Chlorine, total residual | 2 | 12 | 0 | ||
| Sludge settleability 30 minute | 2 | 12 | 0 | ||
| Coliform, fecal general | 0 | 12 | 0 | ||
| BOD, 5-day, percent removal | 1 | 6 | 0 | ||
| Solids, suspended percent removal | 1 | 6 | 0 | ||
| Enterococci: group D, MF trans, M-E, EIA | 2 | 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 MS0061221.
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
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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 MS0061221 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.