Clean Water Act discharge permit · NPDES TX0113565
LOCKHART WWTP 2, Caldwell County, TX: NPDES TX0113565 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 23Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
LOCKHART WWTP 2, held by GUADALUPE-BLANCO RIVER AUTHORITY/LOCKHART, CITY OF, holds NPDES permit TX0113565, which discharges to Plum Creek. EPA’s file records it issued July 30, 2020 and expiring July 30, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | LOCKHART WWTP 2 |
|---|---|
| Permittee as filed | GUADALUPE-BLANCO RIVER AUTHORITY/LOCKHART, CITY OF |
| NPDES ID | TX0113565 |
| 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 | July 30, 2020 |
| Expiration date | July 30, 2025 |
| Address | Caldwell County, TX 78644 |
| Receiving water | Plum Creek |
| Subwatershed | Pecan Branch-Plum Creek (HUC 121002030405) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 34Pollutants on file
- 23Under a numeric limit
- 31With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 4 | 29 | 21 | July 31, 2025 | 130% over the limit |
| Nitrogen, ammonia total [as N] | 3 | 10 | 4 | March 31, 2021 | 144% over the limit |
| E. coli | 2 | 2 | 2 | December 31, 2022 | 644% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 7 | 1 | September 30, 2004 | 160% over the limit |
| Copper, dry weight | 0 | 1 | 1 | July 31, 2002 | 61% over the limit |
| Zinc, sludge, total, dry weight [as Zn] | 0 | 1 | 1 | July 31, 2002 | 34% over the limit |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 4 | 12 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 4 | 10 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 8 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 6 | 0 | ||
| Solids, total suspended | 3 | 6 | 0 | ||
| pH | 2 | 5 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 4 | 4 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 4 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 4 | 0 | ||
| Coliform, fecal general | 0 | 4 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 2 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 4 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 2 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 1 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 1 | 0 | ||
| Arsenic, dry weight | 0 | 1 | 0 | ||
| Selenium, dry weight | 0 | 1 | 0 | ||
| Cadmium, dry weight | 0 | 1 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 0 | 1 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 0 | 1 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 0 | 1 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 0 | 1 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 0 | 1 | 0 | ||
| Whole effluent toxicity - retest #1 | 7 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 7 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 1, 2019 | 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 September 14, 2026.