Clean Water Act discharge permit · NPDES TX0076503
CITY OF GARRISON WWTP, Garrison, TX: NPDES TX0076503 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 38Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
CITY OF GARRISON WWTP, held by GARRISON, CITY OF, holds NPDES permit TX0076503, which discharges to Unnamed Tributary, Jenks Ck;Attoyac Bayou. EPA’s file records it issued December 16, 2016 and expiring August 1, 2021. 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 GARRISON WWTP |
|---|---|
| Permittee as filed | GARRISON, CITY OF |
| NPDES ID | TX0076503 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 16, 2016 |
| Expiration date | August 1, 2021 |
| Address | Garrison, TX 75946 |
| Receiving water | UNNAMED TRIBUTARY, JENKS CK;ATTOYAC BAYOU |
| Subwatershed | Bear Bayou-Attoyac River (HUC 120200050303) |
| 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
- 39Pollutants on file
- 38Under a numeric limit
- 38With 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 | 158 | 137 | July 31, 2026 | 1,253% over the limit |
| E. coli | 2 | 46 | 27 | April 30, 2026 | 99,999% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 32 | 14 | May 31, 2025 | 86% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 32 | 8 | September 30, 2020 | 71% over the limit |
| Oxygen, dissolved [DO] | 1 | 17 | 8 | July 31, 2026 | 47% over the limit |
| Chlorine, total residual | 2 | 27 | 7 | April 30, 2018 | 60% over the limit |
| Solids, total suspended | 2 | 19 | 1 | May 31, 2021 | 11% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 0 | 7 | 1 | May 31, 2024 | 6% over the limit |
| pH | 3 | 23 | 0 | ||
| Arsenic, dry weight | 5 | 15 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 15 | 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 | ||
| Level of pathogen requirements achieved | 2 | 7 | 0 | ||
| Description of pathogen option used | 2 | 7 | 0 | ||
| Vector attraction reduction alternative used | 2 | 7 | 0 | ||
| Nickel, total [as Ni] | 2 | 6 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 6 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 6 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 5 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 5 | 0 | ||
| Annual amt of sludge incinerated | 1 | 5 | 0 | ||
| Annual sludge production, total | 1 | 5 | 0 | ||
| Annual amount of sludge land applied | 1 | 5 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 5 | 0 | ||
| Annual amt sludge transported interstate | 1 | 5 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 4 | 0 | ||
| Pollutant table from 503.13 | 1 | 4 | 0 | ||
| Fecal coliform | 1 | 3 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 3 | 0 | ||
| Boundary areas | 1 | 3 | 0 | ||
| Salmonella | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 4, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| November 8, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| May 4, 2017 | 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.