Clean Water Act discharge permit · NPDES TX0034461
CITY OF BAY CITY WWTP, Bay City, TX: NPDES TX0034461 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 57Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
CITY OF BAY CITY WWTP, held by BAY CITY, CITY OF, holds NPDES permit TX0034461, which discharges to Cottonwood Ck; Peyton Ck;Lk Austin;Live Oak Bayou. EPA’s file records it issued October 29, 2019 and expiring October 29, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CITY OF BAY CITY WWTP |
|---|---|
| Permittee as filed | BAY CITY, CITY OF |
| NPDES ID | TX0034461 |
| 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 | October 29, 2019 |
| Expiration date | October 29, 2024 |
| Address | Bay City, TX 77414 |
| Receiving water | COTTONWOOD CK; PEYTON CK;LK AUSTIN;LIVE OAK BAYOU |
| Subwatershed | Peyton Creek-Live Oak Bayou (HUC 120904020300) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 58Pollutants on file
- 57Under a numeric limit
- 58With a violation of any kind
- 7With 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 | 20 | 5 | April 30, 2019 | 151% over the limit |
| Whole Effluent Toxicity [WET] - P. promelas | 4 | 4 | 4 | March 31, 2020 | 49% over the limit |
| Whole effluent toxicity | 0 | 4 | 4 | September 30, 2018 | 34% over the limit |
| E. coli | 2 | 5 | 3 | July 31, 2026 | 507% over the limit |
| Chlorine, total residual | 2 | 15 | 2 | March 31, 2026 | 132% over the limit |
| Solids, total suspended | 3 | 14 | 2 | February 28, 2025 | 11% over the limit |
| Whole Effluent Toxicity [WET] - C. dubia | 4 | 2 | 2 | June 30, 2023 | 24% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 23 | 0 | ||
| Cadmium, total [as Cd] | 3 | 21 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 3 | 21 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 21 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 21 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 21 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 21 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 21 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 21 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 2 | 19 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 19 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 2 | 19 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 19 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 2 | 19 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 18 | 0 | ||
| Whole effluent toxicity - retest #2 | 3 | 16 | 0 | ||
| Arsenic, dry weight | 5 | 15 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 15 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 15 | 0 | ||
| pH | 3 | 13 | 0 | ||
| Selenium, dry weight | 3 | 9 | 0 | ||
| Copper, dry weight | 3 | 9 | 0 | ||
| Cadmium, dry weight | 3 | 9 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 9 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 9 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 9 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 9 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 9 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 8 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 8 | 0 | ||
| Nickel, total [as Ni] | 2 | 6 | 0 | ||
| Level of pathogen requirements achieved | 2 | 6 | 0 | ||
| Description of pathogen option used | 2 | 6 | 0 | ||
| Vector attraction reduction alternative used | 2 | 6 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 5 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 3 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 3 | 0 | ||
| Annual whole sludge application rate | 1 | 3 | 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 | ||
| Unit w/liner/leachate collection system | 1 | 3 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 3 | 0 | ||
| Boundary areas | 1 | 3 | 0 | ||
| Salmonella | 1 | 3 | 0 | ||
| Pollutant table from 503.13 | 1 | 3 | 0 | ||
| Fecal coliform | 1 | 2 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 17, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| October 28, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| October 15, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| July 17, 2026 | Focused | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES TX0034461.
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 September 15, 2026.