Clean Water Act discharge permit · NPDES MS0051756
HCUA, GULFPORT POTW, NORTH AND SOUTH PLANTS, Gulfport, MS: NPDES MS0051756 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 16Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
HCUA, GULFPORT POTW, NORTH AND SOUTH PLANTS, held by HARRISON COUNTY UTILITY AUTHORITY, GULFPORT POTW, NORTH AND SOUTH PLANTS, holds NPDES permit MS0051756, which discharges to Ditch To Bernard Bayou. EPA’s file records it issued March 16, 2020 and expiring February 28, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | HCUA, GULFPORT POTW, NORTH AND SOUTH PLANTS |
|---|---|
| Permittee as filed | HARRISON COUNTY UTILITY AUTHORITY, GULFPORT POTW, NORTH AND SOUTH PLANTS |
| NPDES ID | MS0051756 |
| 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 | March 16, 2020 |
| Expiration date | February 28, 2025 |
| Issuing agency | MDEQ |
| Address | Gulfport, MS 39505 |
| Receiving water | DITCH TO BERNARD BAYOU |
| Subwatershed | Bernard Bayou-Big Lake (HUC 031700090602) |
| Program components on file | POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 17Pollutants on file
- 16Under a numeric limit
- 14With a violation of any kind
- 10With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 20 | 58 | 42 | January 31, 2025 | 177% over the limit |
| Nitrogen, ammonia total [as N] | 20 | 49 | 33 | January 31, 2025 | 978% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 27 | 22 | September 30, 2021 | 36% over the limit |
| pH | 8 | 8 | 4 | November 30, 2025 | |
| Nitrogen, total [as N] | 10 | 14 | 2 | December 31, 2017 | 34% over the limit |
| Coliform, fecal general | 0 | 6 | 2 | March 31, 2013 | 327% over the limit |
| Solids, suspended percent removal | 2 | 4 | 2 | January 31, 2017 | 27% over the limit |
| Copper, total recoverable | 2 | 2 | 2 | November 30, 2023 | 16% over the limit |
| Solids, total suspended | 20 | 17 | 1 | January 31, 2017 | 26% over the limit |
| Enterococci: group D, MF trans, M-E, EIA | 4 | 5 | 1 | March 31, 2013 | 50% over the limit |
| Oxygen, dissolved [DO] | 6 | 13 | 0 | ||
| Phosphorus, total [as P] | 10 | 12 | 0 | ||
| Sludge settleability 30 minute | 4 | 4 | 0 | ||
| BOD, 5-day, percent removal | 2 | 2 | 0 | ||
| Chlorine, total residual | 4 | 0 | 0 | ||
| Zinc, total recoverable | 2 | 0 | 0 | ||
| Flow, total | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 30, 2026 | Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| June 18, 2026 | Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
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, MS0051756.
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 MS0051756 there.
Nearby on the register
- Discharge permits in Gulfport
- Every permit record in Gulfport, A to Z
- Discharge permits in Mississippi
- Every permit record in Mississippi, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.