Clean Water Act discharge permit · NPDES TX0072702
CITY OF MAGNOLIA WWTP, Magnolia, TX: NPDES TX0072702 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 38Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
CITY OF MAGNOLIA WWTP, held by MAGNOLIA, CITY OF, holds NPDES permit TX0072702, which discharges to Arnold Branch/Mink Branch, Walnut Creek. EPA’s file records it issued November 9, 2017 and expiring March 1, 2020. 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 MAGNOLIA WWTP |
|---|---|
| Permittee as filed | MAGNOLIA, CITY OF |
| NPDES ID | TX0072702 |
| 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 9, 2017 |
| Expiration date | March 1, 2020 |
| Address | Magnolia, TX 77355 |
| Receiving water | ARNOLD BRANCH/MINK BRANCH, WALNUT CREEK |
| Subwatershed | Mink Branch-Walnut Creek (HUC 120401020204) |
| 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
- 52Pollutants on file
- 38Under a numeric limit
- 51With a violation of any kind
- 8With 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 | 64 | 22 | July 31, 2026 | 178% over the limit |
| Solids, total suspended | 3 | 55 | 10 | May 31, 2021 | 173% over the limit |
| Chlorine, total residual | 2 | 88 | 6 | February 28, 2026 | 1,100% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 88 | 2 | February 29, 2004 | 96% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 49 | 2 | December 31, 2005 | 10% over the limit |
| E. coli | 2 | 18 | 2 | February 28, 2023 | 45% over the limit |
| pH | 3 | 38 | 1 | April 30, 2004 | |
| Oxygen, dissolved [DO] | 1 | 16 | 1 | August 31, 2004 | 5% over the limit |
| Arsenic, dry weight | 5 | 35 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 35 | 0 | ||
| Selenium, dry weight | 3 | 21 | 0 | ||
| Copper, dry weight | 3 | 21 | 0 | ||
| Cadmium, dry weight | 3 | 21 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 21 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 21 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 21 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 21 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 21 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 16 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 0 | 16 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 16 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 0 | 16 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 16 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 0 | 16 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 16 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 0 | 16 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 16 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 0 | 16 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 16 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 0 | 16 | 0 | ||
| Nickel, total [as Ni] | 2 | 14 | 0 | ||
| Level of pathogen requirements achieved | 2 | 14 | 0 | ||
| Description of pathogen option used | 2 | 14 | 0 | ||
| Vector attraction reduction alternative used | 2 | 14 | 0 | ||
| Fecal coliform | 1 | 7 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 7 | 0 | ||
| Boundary areas | 1 | 7 | 0 | ||
| Salmonella | 1 | 7 | 0 | ||
| Pollutant table from 503.13 | 1 | 7 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 6 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 4 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 4 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 0 | 4 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 0 | 4 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 3 | 0 | ||
| Annual amt of sludge incinerated | 1 | 3 | 0 | ||
| Annual sludge production, total | 1 | 3 | 0 | ||
| Annual amount of sludge land applied | 1 | 3 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 3 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 3 | 0 | ||
| Annual amt sludge transported interstate | 1 | 3 | 0 | ||
| Annual whole sludge application rate | 1 | 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
- 7Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 9, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| March 24, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| March 7, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| March 25, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| September 16, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| July 27, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| March 18, 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.