NPDES TX0126195 · Clean Water Act
LIBERTY HILL REGIONAL WWTP, Williamson County, TX: NPDES TX0126195 discharge permit, effluent exceedances, inspections, penalties
LIBERTY HILL REGIONAL WWTP, Williamson County, Texas: Individual permit TX0126195, held by LIBERTY HILL, CITY OF; Publicly owned treatment works; Administratively continued; issued September 22, 2015, term to December 1, 2018.
3 of the 56 pollutants listed for NPDES TX0126195 have no violation or effluent exceedance.
- Phosphorus, total [as P]: 6 limits, 121 violations of any kind, 115 effluent exceedances, latest July 31, 2026, largest 2,250% over the limit.
- Nitrogen, ammonia total [as N]: 6 limits, 78 violations of any kind, 67 effluent exceedances, latest February 29, 2024, largest 868% over the limit.
- Flow, in conduit or thru treatment plant: 6 limits, 59 violations of any kind, 53 effluent exceedances, latest March 31, 2025, largest 86% over the limit.
- E. coli: 4 limits, 30 violations of any kind, 25 effluent exceedances, latest March 31, 2020, largest 99,999% over the limit.
- Solids, total suspended: 6 limits, 17 violations of any kind, 14 effluent exceedances, latest February 28, 2018, largest 418% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 6 limits, 11 violations of any kind, 5 effluent exceedances, latest February 29, 2024, largest 20% over the limit.
- Nitrogen, nitrate total [as N]: 6 limits, 10 violations of any kind, 4 effluent exceedances, latest November 30, 2024, largest 131% over the limit.
- Chromium, sludge, total, dry weight [as Cr]: 5 limits, 13 violations of any kind.
- Arsenic, dry weight: 5 limits, 10 violations of any kind.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 8 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 8 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 8 violations of any kind.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas: 2 limits, 8 violations of any kind.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 8 violations of any kind.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 8 violations of any kind.
- Nitrogen, total [as N]: 5 limits, 6 violations of any kind.
- Selenium, dry weight: 3 limits, 6 violations of any kind.
- Copper, dry weight: 3 limits, 6 violations of any kind.
- Cadmium, dry weight: 3 limits, 6 violations of any kind.
- Molybdenum, sludge, total, dry weight [as Mo]: 3 limits, 6 violations of any kind.
- Zinc, sludge, total, dry weight [as Zn]: 3 limits, 6 violations of any kind.
- Lead, sludge, total, dry weight [as Pb]: 3 limits, 6 violations of any kind.
- Nickel, sludge, total, dry weight [as Ni]: 3 limits, 6 violations of any kind.
- Mercury, sludge, total, dry weight [as Hg]: 3 limits, 6 violations of any kind.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 6 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 6 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 6 violations of any kind.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 6 violations of any kind.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 6 violations of any kind.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 6 violations of any kind.
- pH: 5 limits, 5 violations of any kind.
- Level of pathogen requirements achieved: 2 limits, 5 violations of any kind.
- Description of pathogen option used: 2 limits, 5 violations of any kind.
- Vector attraction reduction alternative used: 2 limits, 5 violations of any kind.
- Nickel, total [as Ni]: 2 limits, 4 violations of any kind.
- Toxicity characteristic leaching procedure: 1 limit, 3 violations of any kind.
- Ann. amt sludge disposed by other method: 1 limit, 3 violations of any kind.
- Annual amt sludge disposed in landfill: 1 limit, 3 violations of any kind.
- Pollutant table from 503.13: 1 limit, 3 violations of any kind.
- Oxygen, dissolved [DO]: 2 limits, 2 violations of any kind.
- Fecal coliform: 1 limit, 2 violations of any kind.
- Polychlorinated biphenyls [PCBs]: 1 limit, 2 violations of any kind.
- Annual amt of sludge incinerated: 1 limit, 2 violations of any kind.
- Annual sludge production, total: 1 limit, 2 violations of any kind.
- Annual amount of sludge land applied: 1 limit, 2 violations of any kind.
- Annual amt. sludge disposed surface unit: 1 limit, 2 violations of any kind.
- Annual amt sludge transported interstate: 1 limit, 2 violations of any kind.
- Unit w/liner/leachate collection system: 1 limit, 2 violations of any kind.
- Compliance w/part 258 sludge requirement: 1 limit, 2 violations of any kind.
- Boundary areas: 1 limit, 2 violations of any kind.
- Salmonella: 1 limit, 2 violations of any kind.
- LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit, 1 violation of any kind.
- LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 1 limit, 1 violation of any kind.
- Whole effluent toxicity - retest #1: 3 limits.
- Whole effluent toxicity - retest #2: 3 limits.
- Annual whole sludge application rate: 1 limit.
- July 21, 2026: Evaluation (S).
- March 18, 2026: State CWA Penalty AO (State), $125,475 state or local penalty.
- February 18, 2026: Under Review (State).
- February 4, 2026: Focused (S).
- January 20, 2026: Under Review (State).
- November 16, 2020: Permit Violations - Violation Specified in Comment (ST6).
- December 13, 2018: Permit Violations - Violation Specified in Comment (ST6).
Texas holds 1,720 Publicly owned treatment works coverages of this permit type in EPA’s file; 171 were issued before TX0126195.
Coverages issued nearest TX0126195
- 2015-09-04: CITY OF PORTLAND WWTP, Portland: TX0055433, held by PORTLAND, CITY OF
- 2015-09-04: CHISOS BASIN WWTP, Big Bend National Park: TX0094684, held by US DEPT OF THE INTERIOR
- 2015-09-10: CITY OF SMILEY WWTP, Smiley: TX0069809, held by SMILEY, CITY OF
- 2015-09-10: SIERRA BLANCA, Sierra Blanca: TX0115657, held by HADRPETH CO WCID 1
- 2015-09-22: CITY OF HARLINGEN WATERWORKS SYSTEM WWTP, Harlingen: TX0047929, held by CITY OF HARLINGEN WATERWORKS SYSTEM
- 2015-09-28: SAN FELIPE WWTP, Del Rio: TX0047198, held by CITY OF DEL RIO
- 2015-09-28: SILVER LAKE WWTP, Del Rio: TX0053830, held by DEL RIO, CITY OF
- 2015-09-28: SEINNA PLANTATION MUD 1 WWTP 2, Fort Bend County: TX0119539, held by SIENNA PLANTATION MUD NO 1
- 2015-10-02: WILLOW CREEK FARMS MUD WWTF, Waller County: TX0128236, held by WILLOW CREEK FARMS MUD 1
- 2015-10-07: ROBSTOWN WWTF, Robstown: TX0020389, held by ROBSTOWN, CITY OF
LIBERTY HILL REGIONAL WWTP among its neighbors
89 discharge permits are in the Lower South Fork San Gabriel River subwatershed (HUC 120702050203); TX0126195 is one. Its county: 965, 17 major; TX0126195 is major permit.
Other permits in the Lower South Fork San Gabriel River subwatershed (HUC 120702050203)
- 183 258 LIBERTY HILL WWTP, Liberty Hill: TX0145882
- ALAMO CONCRETE PRODUCTS GEORGETOWN PLANT 75, Georgetown: TXG110064, minor, term to 2021-11-07
- ALAMO CONCRETE PRODUCTS WEIR QUARRY 1300, Georgetown: TXR05FB88, minor, term to 2026-08-13
- BAGDAD ROAD ROW CLEARING PROJECT, Liberty Hill: TXR1533TY, minor, term to 2028-03-04
- BAGDAD ROAD ROW CLEARING PROJECT, Liberty Hill: TXR1582UB, minor, term to 2028-03-04
- BLUEBONNET PLAZA LOT 2, Georgetown: TXR1531UV, minor, term to 2028-03-04
- BLUEBONNET WWTP, City Of Leander: TX0149535
- BLUFF HAVEN BLUFFVIEW, Georgetown: TXR1506YQ, minor, term to 2028-03-04
- BLUFFVIEW PHASE 1, Georgetown: TXR1522SC, minor, term to 2028-03-04
- BLUFFVIEW PHASE 1, Georgetown: TXR1568WV, minor, term to 2028-03-04
Identity
| Facility | LIBERTY HILL REGIONAL WWTP |
|---|---|
| Permittee | LIBERTY HILL, CITY OF |
| NPDES ID | TX0126195 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Major |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 22, 2015 |
| Expires | December 1, 2018 |
| Address | Williamson County, TX 78703 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lower South Fork San Gabriel River (HUC 120702050203) |
| SIC | 4952 – Sewerage Systems |
NPDES TX0126195: effluent limits and exceedances
LIBERTY HILL REGIONAL WWTP (NPDES TX0126195): 56 pollutants on file, 56 limited; 53 with a violation of any kind, 7 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Phosphorus, total [as P] | 6 | 121 | 115 | July 31, 2026 | 2,250% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 78 | 67 | February 29, 2024 | 868% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 59 | 53 | March 31, 2025 | 86% over the limit |
| E. coli | 4 | 30 | 25 | March 31, 2020 | 99,999% over the limit |
| Solids, total suspended | 6 | 17 | 14 | February 28, 2018 | 418% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 11 | 5 | February 29, 2024 | 20% over the limit |
| Nitrogen, nitrate total [as N] | 6 | 10 | 4 | November 30, 2024 | 131% over the limit |
| Chromium, sludge, total, dry weight [as Cr] | 5 | 13 | 0 | ||
| Arsenic, dry weight | 5 | 10 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 8 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 8 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 8 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 2 | 8 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 2 | 8 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 2 | 8 | 0 | ||
| Nitrogen, total [as N] | 5 | 6 | 0 | ||
| Selenium, dry weight | 3 | 6 | 0 | ||
| Copper, dry weight | 3 | 6 | 0 | ||
| Cadmium, dry weight | 3 | 6 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 6 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 6 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 6 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 6 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 6 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 6 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 6 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 6 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 6 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 6 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 6 | 0 | ||
| pH | 5 | 5 | 0 | ||
| Level of pathogen requirements achieved | 2 | 5 | 0 | ||
| Description of pathogen option used | 2 | 5 | 0 | ||
| Vector attraction reduction alternative used | 2 | 5 | 0 | ||
| Nickel, total [as Ni] | 2 | 4 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 3 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 3 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 3 | 0 | ||
| Pollutant table from 503.13 | 1 | 3 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 2 | 0 | ||
| Fecal coliform | 1 | 2 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 2 | 0 | ||
| Annual amt of sludge incinerated | 1 | 2 | 0 | ||
| Annual sludge production, total | 1 | 2 | 0 | ||
| Annual amount of sludge land applied | 1 | 2 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 2 | 0 | ||
| Annual amt sludge transported interstate | 1 | 2 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 2 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 2 | 0 | ||
| Boundary areas | 1 | 2 | 0 | ||
| Salmonella | 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 | ||
| Whole effluent toxicity - retest #1 | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 3 | 0 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 |
NPDES TX0126195: inspections, violations and enforcement
NPDES TX0126195: 2 single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 16, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
| December 13, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
NPDES TX0126195: 2 inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| July 21, 2026 | Evaluation | S |
| February 4, 2026 | Focused | S |
NPDES TX0126195: 1 formal enforcement action
1 of them with a penalty assessed. How penalties are shown.
| Date | What EPA recorded | Agency | Federal penalty | State or local penalty |
|---|---|---|---|---|
| March 18, 2026 | State CWA Penalty AO | State | $125,475 |
NPDES TX0126195: 2 informal enforcement actions
| Date | What EPA recorded | Agency |
|---|---|---|
| February 18, 2026 | Under Review | State |
| January 20, 2026 | Under Review | State |
Watch NPDES TX0126195
NPDES TX0126195: one email when its EPA record changes — $99/month.
Permits near NPDES TX0126195
NPDES TX0126195: 56 pollutant rows, 7 dated events; ICIS-NPDES download, loaded October 14, 2026.