Clean Water Act discharge permit · NPDES TX0142697
CITY OF ALTO WWTP, Alto, TX: NPDES TX0142697 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
CITY OF ALTO WWTP, held by ALTO, CITY OF, holds NPDES permit TX0142697, which discharges to Neches River Below Lake Palestine. EPA’s file records it issued August 4, 2023 and expiring August 4, 2028. 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 ALTO WWTP |
|---|---|
| Permittee as filed | ALTO, CITY OF |
| NPDES ID | TX0142697 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | August 4, 2023 |
| Expiration date | August 4, 2028 |
| Address | Alto, TX 75925 |
| Receiving water | Neches River Below Lake Palestine |
| Subwatershed | Larrison Creek-Neches River (HUC 120200020105) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 8Pollutants on file
- 8Under a numeric limit
- 8With 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 | 54 | 48 | July 31, 2026 | 754% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 30 | 24 | February 28, 2026 | 535% over the limit |
| Oxygen, dissolved [DO] | 1 | 23 | 21 | July 31, 2026 | 76% over the limit |
| Solids, total suspended | 3 | 20 | 14 | April 30, 2026 | 111% over the limit |
| E. coli | 2 | 19 | 11 | September 30, 2025 | 1,821% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 7 | 3 | May 31, 2024 | 250% over the limit |
| pH | 2 | 5 | 1 | April 30, 2026 | |
| Chlorine, total residual | 2 | 5 | 1 | May 31, 2025 | 20% over the limit |
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 |
|---|---|---|
| May 1, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| December 6, 2023 | 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.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID TX0142697 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.