Clean Water Act discharge permit · NPDES TX0052639
LEON CREEK WATER RECYCLING CENTER WWTP, San Antonio, TX: NPDES TX0052639 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 56Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
LEON CREEK WATER RECYCLING CENTER WWTP, held by SAN ANTONIO WATER SYSTEM, holds NPDES permit TX0052639, which discharges to Comanche Ck; Lower Leon Ck. EPA’s file records it issued October 7, 2015 and expiring March 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 | LEON CREEK WATER RECYCLING CENTER WWTP |
|---|---|
| Permittee as filed | SAN ANTONIO WATER SYSTEM |
| NPDES ID | TX0052639 |
| 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 7, 2015 |
| Expiration date | March 1, 2020 |
| Address | San Antonio, TX 78224 |
| Receiving water | COMANCHE CK; LOWER LEON CK |
| Subwatershed | Palo Blanco Creek-Medina River (HUC 121003020509) |
| Program components on file | POTW, Pretreatment |
| 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
- 56Pollutants on file
- 56Under a numeric limit
- 24With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 7 | 49 | 17 | April 30, 2026 | 152% over the limit |
| E. coli | 4 | 14 | 14 | June 30, 2026 | 433% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 7 | 33 | 2 | October 31, 2003 | 99,999% over the limit |
| pH | 5 | 14 | 2 | February 28, 2009 | |
| Oxygen, dissolved [DO] | 2 | 8 | 2 | October 31, 2003 | 18% over the limit |
| Flow, in conduit or thru treatment plant | 12 | 42 | 0 | ||
| Solids, total suspended | 7 | 31 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 4 | 28 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 28 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 4 | 28 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 26 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 4 | 26 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 24 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 16 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 16 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 14 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 4 | 14 | 0 | ||
| Chlorine, total residual | 4 | 12 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 12 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 12 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 2 | 3 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 2 | 3 | 0 | ||
| Chloride [as Cl] | 3 | 1 | 0 | ||
| Solids, total dissolved | 3 | 1 | 0 | ||
| Whole effluent toxicity - retest #1 | 6 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 6 | 0 | 0 | ||
| Arsenic, dry weight | 5 | 0 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 0 | 0 | ||
| Selenium, dry weight | 3 | 0 | 0 | ||
| Copper, dry weight | 3 | 0 | 0 | ||
| Cadmium, dry weight | 3 | 0 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 0 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 0 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 0 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 0 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 0 | 0 | ||
| Nickel, total [as Ni] | 2 | 0 | 0 | ||
| Level of pathogen requirements achieved | 2 | 0 | 0 | ||
| Description of pathogen option used | 2 | 0 | 0 | ||
| Vector attraction reduction alternative used | 2 | 0 | 0 | ||
| Fecal coliform | 1 | 0 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 0 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 0 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 0 | 0 | ||
| Annual amt of sludge incinerated | 1 | 0 | 0 | ||
| Annual sludge production, total | 1 | 0 | 0 | ||
| Annual amount of sludge land applied | 1 | 0 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 0 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 0 | 0 | ||
| Annual amt sludge transported interstate | 1 | 0 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 0 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 0 | 0 | ||
| Boundary areas | 1 | 0 | 0 | ||
| Salmonella | 1 | 0 | 0 | ||
| Pollutant table from 503.13 | 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
- 55Single-event violations
The newest 50 of 55.
| Date | What EPA recorded | Agency |
|---|---|---|
| December 31, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| January 27, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| November 1, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| September 20, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| August 23, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| November 22, 2023 | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| November 5, 2023 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| July 10, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| December 5, 2022 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| November 16, 2022 | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| October 10, 2022 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| June 27, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| October 25, 2021 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| October 18, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| October 15, 2021 | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| October 13, 2021 | Wet-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| October 9, 2021 | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| September 27, 2021 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| September 23, 2021 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| September 21, 2021 | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| September 17, 2021 | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| August 23, 2021 | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| August 4, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| July 27, 2021 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| July 21, 2021 | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| July 9, 2021 | Wet-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| July 9, 2021 | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| July 6, 2021 | Wet-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| July 4, 2021 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| June 28, 2021 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| June 25, 2021 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| June 18, 2021 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| June 9, 2021 | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| June 3, 2021 | Wet-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| May 28, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| February 23, 2021 | Effluent Violations - Reported Fish Kill | EP6 |
| February 19, 2021 | Effluent Violations - Reported Fish Kill | EP6 |
| February 18, 2021 | Effluent Violations - Reported Fish Kill | EP6 |
| October 27, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
| October 9, 2020 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| October 3, 2020 | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| April 4, 2020 | Wet-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| November 14, 2019 | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| November 14, 2019 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| March 13, 2019 | Permit Violations - Violation Specified in Comment | ST6 |
| October 9, 2018 | WW SSO - Overflow to Dry Land or Building Backup | EP6 |
| October 5, 2018 | WW SSO - Discharge to Waters | EP6 |
| August 13, 2018 | WW SSO - Discharge to Waters | EP6 |
| March 15, 2018 | WW SSO - Overflow to Dry Land or Building Backup | EP6 |
| October 1, 2017 | WW SSO - Discharge to Waters | EP6 |
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.