Clean Water Act discharge permit · NPDES MS0020389
YAZOO CITY POTW, Yazoo City, MS: NPDES MS0020389 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 12Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
YAZOO CITY POTW holds NPDES permit MS0020389, which discharges to Yazoo River. EPA’s file records it issued March 1, 2018 and expiring February 28, 2023. 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 | YAZOO CITY POTW |
|---|---|
| Permittee as filed | YAZOO CITY POTW |
| NPDES ID | MS0020389 |
| 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 1, 2018 |
| Expiration date | February 28, 2023 |
| Issuing agency | MDEQ |
| Address | Yazoo City, MS 39194 |
| Receiving water | YAZOO RIVER |
| Subwatershed | Rocky Bayou-Yazoo River (HUC 080302060802) |
| 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
- 15Pollutants on file
- 12Under a numeric limit
- 15With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 2 | 40 | 34 | May 31, 2026 | 120% over the limit |
| Nitrogen, total [as N] | 12 | 49 | 29 | February 28, 2025 | 193% over the limit |
| BOD, 5-day, percent removal | 1 | 18 | 13 | June 30, 2026 | 109% over the limit |
| E. coli | 2 | 8 | 4 | July 31, 2026 | 65% over the limit |
| BOD, 5-day, 20 deg. C | 8 | 27 | 3 | May 31, 2026 | 9% over the limit |
| Phosphorus, total [as P] | 8 | 28 | 0 | ||
| Solids, total suspended | 8 | 24 | 0 | ||
| Nitrogen, ammonia total [as N] | 8 | 24 | 0 | ||
| pH | 2 | 6 | 0 | ||
| Chlorine, total residual | 2 | 6 | 0 | ||
| Coliform, fecal general | 0 | 4 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 3 | 0 | ||
| Solids, suspended percent removal | 1 | 2 | 0 | ||
| %Effect Static Renewal 48Hr Acute Ceriodaphnia dubia | 0 | 1 | 0 | ||
| %Effect Static Renewal 96Hr Acute Pimephales promelas | 0 | 1 | 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 MS0020389.
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, MS0020389.
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 MS0020389 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 October 14, 2026.