Clean Water Act discharge permit · NPDES TX0021784
CITY OF MARSHALL SOUTHSIDE WWTP, Marshall, TX: NPDES TX0021784 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 25Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
CITY OF MARSHALL SOUTHSIDE WWTP, held by MARSHALL, CITY OF, holds NPDES permit TX0021784, which discharges to Sabine River Above Toledo Bend Reservoir. EPA’s file records it issued November 18, 2021 and expiring November 18, 2024. 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 | CITY OF MARSHALL SOUTHSIDE WWTP |
|---|---|
| Permittee as filed | MARSHALL, CITY OF |
| NPDES ID | TX0021784 |
| 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 | November 18, 2021 |
| Expiration date | November 18, 2024 |
| Address | Marshall, TX 75672 |
| Receiving water | Sabine River Above Toledo Bend Reservoir |
| Subwatershed | Parker Creek-Eightmile Creek (HUC 120100020703) |
| Program components on file | POTW, Pretreatment |
| 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
- 37Pollutants on file
- 25Under a numeric limit
- 37With a violation of any kind
- 9With 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] | 3 | 102 | 87 | July 31, 2026 | 214% over the limit |
| Whole effluent toxicity | 4 | 20 | 12 | June 30, 2024 | 100% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 24 | 9 | November 30, 2022 | 115% over the limit |
| Solids, total suspended | 3 | 21 | 6 | July 31, 2007 | 506% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 29 | 3 | December 31, 2021 | 14% over the limit |
| pH | 2 | 15 | 2 | September 30, 2023 | |
| Oxygen, dissolved [DO] | 1 | 7 | 2 | May 31, 2023 | 35% over the limit |
| E. coli | 2 | 6 | 2 | October 31, 2022 | 66% over the limit |
| Coliform, fecal general | 0 | 4 | 2 | April 30, 2007 | 107% over the limit |
| Aluminum, total [as Al] | 3 | 18 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 8 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 8 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 8 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 6 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 6 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 6 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 5 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 5 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 4 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 2 | 4 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 4 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 2 | 4 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 4 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 2 | 4 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 2 | 0 | ||
| Whole effluent toxicity - retest #2 | 3 | 2 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 0 | 2 | 0 | ||
| Chlorine, total residual | 0 | 2 | 0 | ||
| Toxicity characteristic leaching procedure | 0 | 1 | 0 | ||
| Ann. amt sludge disposed by other method | 0 | 1 | 0 | ||
| Annual amt of sludge incinerated | 0 | 1 | 0 | ||
| Annual sludge production, total | 0 | 1 | 0 | ||
| Annual amount of sludge land applied | 0 | 1 | 0 | ||
| Annual amt. sludge disposed surface unit | 0 | 1 | 0 | ||
| Annual amt sludge disposed in landfill | 0 | 1 | 0 | ||
| Annual amt sludge transported interstate | 0 | 1 | 0 | ||
| Compliance w/part 258 sludge requirement | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 22, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| July 6, 2021 | Permit Violations - Violation Specified in Comment | 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.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.