Clean Water Act discharge permit · NPDES TX0055433
CITY OF PORTLAND WWTP, Portland, TX: NPDES TX0055433 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 54Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
CITY OF PORTLAND WWTP, held by PORTLAND, CITY OF, holds NPDES permit TX0055433, which discharges to Nueces Bay. EPA’s file records it issued September 4, 2015 and expiring April 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 PORTLAND WWTP |
|---|---|
| Permittee as filed | PORTLAND, CITY OF |
| NPDES ID | TX0055433 |
| 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 4, 2015 |
| Expiration date | April 1, 2020 |
| Address | Portland, TX 78374 |
| Receiving water | NUECES BAY |
| Subwatershed | Gum Hollow (HUC 121102010002) |
| 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
- 60Pollutants on file
- 54Under a numeric limit
- 57With 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 |
|---|---|---|---|---|---|
| Enterococci | 2 | 131 | 127 | December 31, 2022 | 346,929% over the limit |
| Chlorine, total residual | 2 | 49 | 30 | May 31, 2009 | 100% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 105 | 15 | October 31, 2023 | 34% over the limit |
| Solids, total suspended | 3 | 85 | 13 | March 31, 2022 | 313% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 79 | 7 | August 31, 2021 | 39% over the limit |
| pH | 3 | 47 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 23 | 0 | ||
| Arsenic, dry weight | 5 | 5 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 5 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 4 | 5 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 4 | 5 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 4 | 5 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 4 | 4 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 4 | 4 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 4 | 4 | 0 | ||
| Fecal coliform | 1 | 4 | 0 | ||
| Salmonella | 1 | 4 | 0 | ||
| Whole effluent toxicity - retest #1 | 7 | 3 | 0 | ||
| Whole effluent toxicity - retest #2 | 7 | 3 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 4 | 3 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 4 | 3 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 4 | 3 | 0 | ||
| Zinc, total [as Zn] | 3 | 3 | 0 | ||
| Selenium, dry weight | 3 | 3 | 0 | ||
| Copper, dry weight | 3 | 3 | 0 | ||
| Cadmium, dry weight | 3 | 3 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 3 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 3 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 3 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 3 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 3 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 3 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | 1 | 3 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 4 | 2 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia | 4 | 2 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia | 4 | 2 | 0 | ||
| Nickel, total [as Ni] | 2 | 2 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina | 0 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina | 0 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | 0 | 2 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | 0 | 2 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina | 0 | 2 | 0 | ||
| LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina | 0 | 2 | 0 | ||
| Level of pathogen requirements achieved | 2 | 1 | 0 | ||
| Description of pathogen option used | 2 | 1 | 0 | ||
| Vector attraction reduction alternative used | 2 | 1 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 1 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 1 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 1 | 0 | ||
| Annual amt of sludge incinerated | 1 | 1 | 0 | ||
| Annual sludge production, total | 1 | 1 | 0 | ||
| Annual amount of sludge land applied | 1 | 1 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 1 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 1 | 0 | ||
| Annual amt sludge transported interstate | 1 | 1 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 1 | 0 | ||
| Pollutant table from 503.13 | 1 | 1 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 0 | 0 | ||
| Boundary areas | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 18, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| February 1, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| October 27, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| July 19, 2018 | 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.