Clean Water Act discharge permit · NPDES TXS001901
CITY OF SAN ANTONIO MS4, San Antonio, TX: NPDES TXS001901 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 23Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
CITY OF SAN ANTONIO MS4, held by SAN ANTONIO, CITY OF, holds NPDES permit TXS001901. EPA’s file records it issued April 11, 2011 and expiring September 28, 2012. 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 SAN ANTONIO MS4 |
|---|---|
| Permittee as filed | SAN ANTONIO, CITY OF |
| NPDES ID | TXS001901 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Large municipal storm sewer systems |
| Issued | April 11, 2011 |
| Expiration date | September 28, 2012 |
| Address | San Antonio, TX 78283 |
| Subwatershed | Beitel Creek-Salado Creek (HUC 121003010104) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 27Pollutants on file
- 23Under a numeric limit
- 27With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Hardness, total [as CaCO3] | 56 | 100 | 0 | ||
| Temperature, water deg. centigrade | 56 | 98 | 0 | ||
| Oil & Grease | 56 | 90 | 0 | ||
| Diazinon | 56 | 88 | 0 | ||
| BOD, 5-day, 20 deg. C | 56 | 86 | 0 | ||
| Oxygen demand, chem. [high level] [COD] | 56 | 86 | 0 | ||
| Solids, total suspended | 56 | 86 | 0 | ||
| Nitrogen, total [as N] | 56 | 86 | 0 | ||
| Nitrogen, ammonia total [as N] | 56 | 86 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 56 | 86 | 0 | ||
| Phosphorus, total [as P] | 56 | 86 | 0 | ||
| Phosphorus, dissolved | 56 | 86 | 0 | ||
| Nickel, total [as Ni] | 56 | 86 | 0 | ||
| Solids, total dissolved | 56 | 86 | 0 | ||
| pH | 56 | 84 | 0 | ||
| Cadmium, total [as Cd] | 56 | 84 | 0 | ||
| Chromium, total [as Cr] | 56 | 84 | 0 | ||
| Copper, total [as Cu] | 56 | 84 | 0 | ||
| Lead, total [as Pb] | 56 | 84 | 0 | ||
| Zinc, total [as Zn] | 56 | 84 | 0 | ||
| E. coli | 56 | 82 | 0 | ||
| Nitrogen, nitrate total [as N] | 56 | 74 | 0 | ||
| Cyanide, total [as CN] | 56 | 56 | 0 | ||
| Coliform, fecal general | 0 | 30 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 28 | 0 | ||
| Cyanide, free [amenable to chlorination] | 0 | 28 | 0 | ||
| Enterococci: group D, MF trans, M-E, EIA | 0 | 28 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TXS001901.
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES TXS001901.
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 TXS001901 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.