Clean Water Act discharge permit · NPDES TX0023868
CITY OF LOCKHART WWTF NO 1, Lockhart, TX: NPDES TX0023868 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 55Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
CITY OF LOCKHART WWTF NO 1, held by LOCKHART, CITY OF AND GUADALUPE-BLANCO RIVER AUTHORITY, holds NPDES permit TX0023868, which discharges to Town Branch;Plum Creek. EPA’s file records it issued April 15, 2020 and expiring April 15, 2025.
CITY OF LOCKHART WWTF NO 1, Lockhart, Texas: Individual permit TX0023868, held by LOCKHART, CITY OF AND GUADALUPE-BLANCO RIVER AUTHORITY; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued April 15, 2020, term to April 15, 2025; discharges to TOWN BRANCH;PLUM CREEK.
- Flow, in conduit or thru treatment plant: 4 limits, 21 violations of any kind, 20 effluent exceedances, latest October 31, 2021, largest 123% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 1 violation of any kind, 1 effluent exceedance, latest April 30, 2026, largest 16% over the limit.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 4 violations of any kind, 0 effluent exceedances.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 4 violations of any kind, 0 effluent exceedances.
- Chlordane [tech mix. and metabolites]: 3 limits, 4 violations of any kind, 0 effluent exceedances.
- Chlorine, total residual: 2 limits, 3 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 2 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 2 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 2 violations of any kind, 0 effluent exceedances.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas: 4 limits, 2 violations of any kind, 0 effluent exceedances.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 2 violations of any kind, 0 effluent exceedances.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 2 violations of any kind, 0 effluent exceedances.
- Polychlorinated biphenyls [PCBs]: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Toxicity characteristic leaching procedure: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Annual amt of sludge incinerated: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Annual amount of sludge land applied: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Annual amt. sludge disposed surface unit: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- pH: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Annual amt sludge disposed in landfill: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amt sludge transported interstate: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #1: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #2: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Arsenic, dry weight: 5 limits, 0 violations of any kind, 0 effluent exceedances.
- Chromium, sludge, total, dry weight [as Cr]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrogen, ammonia total [as N]: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Selenium, dry weight: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Copper, dry weight: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Cadmium, dry weight: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Molybdenum, sludge, total, dry weight [as Mo]: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Zinc, sludge, total, dry weight [as Zn]: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Lead, sludge, total, dry weight [as Pb]: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Nickel, sludge, total, dry weight [as Ni]: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Mercury, sludge, total, dry weight [as Hg]: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Nickel, total [as Ni]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- E. coli: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Level of pathogen requirements achieved: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Description of pathogen option used: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Vector attraction reduction alternative used: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Oxygen, dissolved [DO]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Fecal coliform: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Annual whole sludge application rate: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Ann. amt sludge disposed by other method: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Annual sludge production, total: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Unit w/liner/leachate collection system: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Compliance w/part 258 sludge requirement: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Boundary areas: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Salmonella: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Pollutant table from 503.13: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Texas holds 1,720 Publicly owned treatment works coverages of this permit type in EPA’s file; 1,360 were issued before TX0023868.
Coverages issued nearest TX0023868
- March 31, 2020: NORTHEAST HARRIS COUNTY MUD 1 WWTP, Houston, TX0128261, held by NORTHWEST HARRIS COUNTY MUD 1
- April 3, 2020: CITY OF NIXON WWTP, Nixon, TX0070785, held by NIXON, CITY OF
- April 3, 2020: CITY OF LA WARD WWTP, La Ward, TX0105104, held by LA WARD, CITY OF
- April 14, 2020: PLACEDO WWTP, Placedo, TX0093360, held by VICTORIA COUNTY WCID 2
- April 14, 2020: MIRALOMAS WWTP, Boerne, TX0128767, held by MIRALOMAS MUD
- April 15, 2020: VICTORIA COUNTY SOUTH BOUND REST AREA WWTP, Victoria County, TX0077291, held by TEXAS DEPT OF TRANSPORTATION
- April 16, 2020: CITY OF STOCKDALE WWTP, Stockdale, TX0054232, held by STOCKDALE, CITY OF
- April 24, 2020: DUCK CREEK WWTP, Garland, TX0024678, held by GARLAND, CITY OF
- April 24, 2020: CITY OF DEVINE WWTP, Devine, TX0102032, held by DEVINE, CITY OF
- April 27, 2020: CITY OF DUBLIN WWTP, Dublin, TX0054348, held by DUBLIN, CITY OF
CITY OF LOCKHART WWTF NO 1 among its neighbors
EPA’s permit file holds 11 discharge permits in the Dry Creek-Plum Creek subwatershed (HUC 121002030404), TX0023868 among them. Its county holds 114, 2 of them major permits; TX0023868 is a major permit.
Other permits in the Dry Creek-Plum Creek subwatershed (HUC 121002030404)
- 130 ENVIRONMENTAL PARK, Lockhart: TXR05FD41, minor permit, permit term to August 13, 2026
- CGSP - TX 130 - EASTERN PIPELINE, Lockhart: TXR1555VB, minor permit, discharging to PLUM CREEK, permit term to March 4, 2028
- CGSP TX-130 NORTHERN PIPELINE, Lockhart: TXR1509WM, minor permit, discharging to TOWN BRANCH, permit term to March 4, 2028
- CITY OF LOCKHART DOWNTOWN REVITALIZATION, Lockhart: TXR1559SF, minor permit, discharging to TOWN BRANCH, permit term to March 4, 2028
- DURAN GRAVEL PIT 1, Lockhart: TXR05GE02, minor permit, permit term to August 13, 2026
- HANSFORD, Lockhart: TXR1577PM, minor permit, discharging to TOWN BRANCH, permit term to March 4, 2028
- KELLEY VILLAS, Lockhart: TXR1509MZ, minor permit, permit term to March 4, 2028
- LIVENGOOD FEEDS, Lockhart: TXR05FL48, minor permit, permit term to August 13, 2026
- LOCKHART RETAIL & RESTAURANT, Lockhart: TXR1549RY, minor permit, discharging to TOWN BRANCH, permit term to March 4, 2028
- MENDOZA SUBSTATION, Lockhart: TXR1509YZ, minor permit, discharging to MAHA CREEK, permit term to March 4, 2028
Identity
| Facility as filed | CITY OF LOCKHART WWTF NO 1 |
|---|---|
| Permittee as filed | LOCKHART, CITY OF AND GUADALUPE-BLANCO RIVER AUTHORITY |
| NPDES ID | TX0023868 |
| 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 | April 15, 2020 |
| Expiration date | April 15, 2025 |
| Address | Lockhart, TX 78644 |
| Receiving water | TOWN BRANCH;PLUM CREEK |
| Subwatershed | Dry Creek-Plum Creek (HUC 121002030404) |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 55Pollutants on file
- 55Under a numeric limit
- 22With a violation of any kind
- 2With 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 | 21 | 20 | October 31, 2021 | 123% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 1 | 1 | April 30, 2026 | 16% over the limit |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 4 | 4 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 4 | 4 | 0 | ||
| Chlordane [tech mix. and metabolites] | 3 | 4 | 0 | ||
| Chlorine, total residual | 2 | 3 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 4 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 2 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 4 | 2 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 2 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 2 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 2 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 2 | 0 | ||
| Annual amt of sludge incinerated | 1 | 2 | 0 | ||
| Annual amount of sludge land applied | 1 | 2 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 2 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 2 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 2 | 0 | ||
| pH | 3 | 1 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 1 | 0 | ||
| Annual amt sludge transported interstate | 1 | 1 | 0 | ||
| Whole effluent toxicity - retest #1 | 8 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 8 | 0 | 0 | ||
| Arsenic, dry weight | 5 | 0 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| Solids, total suspended | 3 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 3 | 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 | ||
| E. coli | 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 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Fecal coliform | 1 | 0 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 0 | 0 | ||
| Annual sludge production, total | 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 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0023868.
Inspections
EPA’s inspection file holds no inspection for NPDES TX0023868.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES TX0023868.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.