Clean Water Act discharge permit · NPDES MS0023159
HCUA, EAST BILOXI POTW, Biloxi, MS: NPDES MS0023159 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 14Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
HCUA, EAST BILOXI POTW, held by HARRISON CO UTILITY AUTHORITY, EAST BILOXI POTW, holds NPDES permit MS0023159, which discharges to Back Bay Of Biloxi. EPA’s file records it issued March 28, 2019 and expiring February 29, 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 | HCUA, EAST BILOXI POTW |
|---|---|
| Permittee as filed | HARRISON CO UTILITY AUTHORITY, EAST BILOXI POTW |
| NPDES ID | MS0023159 |
| 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 28, 2019 |
| Expiration date | February 29, 2024 |
| Issuing agency | MDEQ |
| Address | Biloxi, MS 39530 |
| Receiving water | BACK BAY OF BILOXI |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 16Pollutants on file
- 14Under a numeric limit
- 15With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Chlorine, total residual | 2 | 26 | 14 | June 30, 2006 | 2,235% over the limit |
| Solids, suspended percent removal | 1 | 15 | 9 | May 31, 2013 | 307% over the limit |
| BOD, 5-day, percent removal | 1 | 10 | 4 | December 31, 2005 | 300% over the limit |
| Solids, total suspended | 8 | 51 | 3 | November 30, 2005 | 27% over the limit |
| Oxygen, dissolved [DO] | 3 | 19 | 1 | September 30, 2012 | 5% over the limit |
| Enterococci: group D, MF trans, M-E, EIA | 2 | 11 | 1 | July 31, 2012 | 60% over the limit |
| BOD, 5-day, 20 deg. C | 8 | 48 | 0 | ||
| Nitrogen, ammonia total [as N] | 8 | 48 | 0 | ||
| Phosphorus, total [as P] | 8 | 48 | 0 | ||
| Nitrogen, total [as N] | 8 | 44 | 0 | ||
| Copper, total recoverable | 0 | 28 | 0 | ||
| pH | 4 | 12 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 12 | 0 | ||
| Sludge settleability 30 minute | 2 | 12 | 0 | ||
| Coliform, fecal general | 0 | 12 | 0 | ||
| Cyanide, free [amenable to chlorination] | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 18, 2026 | Wet-weather SSO 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
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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 MS0023159 there.
Nearby on the register
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- Every permit record in Mississippi, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.