Clean Water Act discharge permit · NPDES MS0056472
REYNOLDS R. RIDGLEY WWTP, Columbus, MS: NPDES MS0056472 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 13Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
REYNOLDS R. RIDGLEY WWTP, held by COLUMBUS, CITY OF, REYNOLDS R RIDGLEY WWTP, holds NPDES permit MS0056472, which discharges to Luxapallila Creek. EPA’s file records it issued September 16, 2020 and expiring August 31, 2025. 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 | REYNOLDS R. RIDGLEY WWTP |
|---|---|
| Permittee as filed | COLUMBUS, CITY OF, REYNOLDS R RIDGLEY WWTP |
| NPDES ID | MS0056472 |
| 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 | September 16, 2020 |
| Expiration date | August 31, 2025 |
| Issuing agency | MDEQ |
| Address | Columbus, MS 39702 |
| Receiving water | LUXAPALLILA CREEK |
| Subwatershed | McCrary Creek-Luxapallila Creek (HUC 031601050503) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 15Pollutants on file
- 13Under a numeric limit
- 15With a violation of any kind
- 3With 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 | 3 | 1 | February 28, 2006 | 22% over the limit |
| E. coli | 2 | 3 | 1 | May 31, 2021 | 59% over the limit |
| BOD, carb-5 day, 20 deg C, percent removal | 0 | 1 | 1 | October 31, 2012 | 13% over the limit |
| BOD, 5-day, 20 deg. C | 8 | 12 | 0 | ||
| Solids, total suspended | 8 | 8 | 0 | ||
| Nitrogen, ammonia total [as N] | 8 | 8 | 0 | ||
| Nitrogen, total [as N] | 8 | 4 | 0 | ||
| Phosphorus, total [as P] | 8 | 4 | 0 | ||
| pH | 2 | 4 | 0 | ||
| Oxygen, dissolved [DO] | 3 | 3 | 0 | ||
| Chlorine, total residual | 2 | 2 | 0 | ||
| Sludge settleability 30 minute | 2 | 2 | 0 | ||
| Coliform, fecal general | 0 | 2 | 0 | ||
| BOD, 5-day, percent removal | 1 | 1 | 0 | ||
| Solids, suspended percent removal | 1 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 9, 2022 | Effluent Violations - Unauthorized Discharge | ST6 |
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
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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 MS0056472 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 14, 2026.