Clean Water Act discharge permit · NPDES TX0125776
LAGUNA HARBOR WWTP, Galveston County, TX: NPDES TX0125776 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 38Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
- 0Inspections on file
- 1Formal enforcement actions
LAGUNA HARBOR WWTP, held by UNDINE TEXAS ENVIRONMENTAL LLC, holds NPDES permit TX0125776, which discharges to Intercoastal Waterway Tidal. EPA’s file records it issued July 12, 2018 and expiring July 12, 2023.
LAGUNA HARBOR WWTP, Galveston County, Texas: Individual permit TX0125776, held by UNDINE TEXAS ENVIRONMENTAL LLC; Administratively continued (past its expiration date and still in force until reissued); issued July 12, 2018, term to July 12, 2023; discharges to INTERCOASTAL WATERWAY TIDAL.
- Nitrogen, ammonia total [as N]: 3 limits, 121 violations of any kind, 112 effluent exceedances, latest July 31, 2024, largest 937% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 16 violations of any kind, 7 effluent exceedances, latest July 31, 2021, largest 191% over the limit.
- Solids, total suspended: 3 limits, 15 violations of any kind, 7 effluent exceedances, latest November 30, 2023, largest 161% over the limit.
- Enterococci: 2 limits, 12 violations of any kind, 5 effluent exceedances, latest October 31, 2023, largest 1,381% over the limit.
- Flow, in conduit or thru treatment plant: 2 limits, 6 violations of any kind, 2 effluent exceedances, latest July 31, 2021, largest 39% over the limit.
- Chlorine, total residual: 2 limits, 5 violations of any kind, 0 effluent exceedances.
- pH: 3 limits, 4 violations of any kind, 0 effluent exceedances.
- Oxygen, dissolved [DO]: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Polychlorinated biphenyls [PCBs]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Toxicity characteristic leaching procedure: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amt of sludge incinerated: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amount of sludge land applied: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amt. sludge disposed surface unit: 1 limit, 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.
- 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.
- 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.
- 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.
- 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.
- April 7, 2026: State CWA Penalty AO (State), $153,300 state or local penalty.
- April 30, 2024: Permit Violations - Violation Specified in Comment (ST6).
- May 24, 2023: Permit Violations - Violation Specified in Comment (ST6).
- September 1, 2022: Permit Violations - Violation Specified in Comment (ST6).
- June 14, 2021: Permit Violations - Violation Specified in Comment (ST6).
- July 3, 2020: Permit Violations - Violation Specified in Comment (ST6).
Other permits held by UNDINE TEXAS ENVIRONMENTAL LLC
- INDIAN HILL HARBOR WWTP, Livingston: TX0057657, issued June 29, 2017
- LAKESIDE VILLAGE, Livingston: TX0063509, issued March 9, 2017
- KALITA POINT WWTF, Livingston: TX0067415, issued February 14, 2017
- DURKEE MANOR WWTP, Houston: TX0070611, issued May 23, 2018
- SOUTHWOOD ESTATES WWTP, Rosharon: TX0093823, issued September 18, 2018
- CRYSTAL PALACE WWTP, Port Bolivar: TX0095923, issued May 22, 2018
- COUNTRY VISTA WWTP, Johnson County: TX0113573, issued September 14, 2016
- WILDWOOD SHORES WWTP, Walker County: TX0122181, issued July 18, 2017
- SUGARTREE WWTP, Parker County: TX0122271, issued December 10, 2019
- GRUNWALD WWTF, Beasley: TX0143286, issued November 16, 2023
LAGUNA HARBOR WWTP among its neighbors
Its county holds 419, 18 of them major permits; TX0125776 is a minor permit.
Other permits in the county
- 1901 1903 1905 1907 ARIZONA AVENUE, League City: TXR1554YE, minor permit, discharging to CLEAR CREEK, permit term to March 4, 2028
- 2004 CBP, Texas City: TXG113637, minor permit, permit term to November 6, 2026
- 25-206 MITMOD SHELTER EXPANSION, Texas City: TXR1508XH, minor permit, discharging to UNNAMED TRIB TO THE SOUTH ARM OF MOSES LAKE, permit term to March 4, 2028
- 34 ACRES EGRET BAY MASS GRADING, League City: TXR1555QU, minor permit, discharging to ROBINSON BAYOU, permit term to March 4, 2028
- 34TH STREET DITCH IMPROVEMENTS, Texas City: TXR1544VR, minor permit, discharging to UNNAMED TRIBUTARY TO THE SOUTHERN ARM OF MOSES LAK, permit term to March 4, 2028
- 40 ACRE FACILITY, Galveston County: TX0057843, major permit, discharging to HURRICANE LEVEE CANAL;TEXAS CITY SHIP CHANNEL, permit term to July 12, 2020
- 4200 PORT INDUSTRIAL ROAD - PORT OF GALVESTON SHOPS, Galveston: TXR05GO18, minor permit, permit term to August 13, 2026
- A AND A MACHINE & FABRICATION, La Marque: TXR05GI57, minor permit, permit term to August 13, 2026
- ACC HOU - HITCHCOCK, Hitchcock: TXR05GS04, minor permit, permit term to August 13, 2026
- ADVENTURE POINTE, Texas City: TXR1508VX, minor permit, discharging to MOSES BAYOU, permit term to March 4, 2028
Identity
| Facility as filed | LAGUNA HARBOR WWTP |
|---|---|
| Permittee as filed | UNDINE TEXAS ENVIRONMENTAL LLC |
| NPDES ID | TX0125776 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 12, 2018 |
| Expiration date | July 12, 2023 |
| Address | Galveston County, TX 77650 |
| Receiving water | INTERCOASTAL WATERWAY TIDAL |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 38Pollutants on file
- 38Under a numeric limit
- 15With 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] | 3 | 121 | 112 | July 31, 2024 | 937% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 16 | 7 | July 31, 2021 | 191% over the limit |
| Solids, total suspended | 3 | 15 | 7 | November 30, 2023 | 161% over the limit |
| Enterococci | 2 | 12 | 5 | October 31, 2023 | 1,381% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 6 | 2 | July 31, 2021 | 39% over the limit |
| Chlorine, total residual | 2 | 5 | 0 | ||
| pH | 3 | 4 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 2 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 1 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 1 | 0 | ||
| Annual amt of sludge incinerated | 1 | 1 | 0 | ||
| Annual amount of sludge land applied | 1 | 1 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 1 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 1 | 0 | ||
| Annual amt sludge transported interstate | 1 | 1 | 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 | ||
| 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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 30, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| May 24, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| September 1, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| June 14, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| July 3, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES TX0125776.
Formal enforcement and penalties
1 formal actions, 1 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.
| Date | What EPA recorded | Agency | Federal penalty | State or local penalty |
|---|---|---|---|---|
| April 7, 2026 | State CWA Penalty AO | State | $153,300 |
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES TX0125776.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.