NPDES TX0074021 · Clean Water Act
TRAIL OF THE LAKES MUD WWTP, Humble, TX: NPDES TX0074021 discharge permit, effluent exceedances, inspections, penalties
TRAIL OF THE LAKES MUD WWTP, Humble, Texas: Individual permit TX0074021, held by TRAIL OF THE LAKES MUD; Publicly owned treatment works; Administratively continued; issued February 9, 2018, term to December 1, 2022; discharges to WILLIAMS GULLY;GARNERS BAYOU;GREENS BAYOU.
22 of the 55 pollutants listed for NPDES TX0074021 have no violation or effluent exceedance.
- Solids, total suspended: 3 limits, 21 violations of any kind, 12 effluent exceedances, latest February 29, 2008, largest 285% over the limit.
- Flow, in conduit or thru treatment plant: 4 limits, 10 violations of any kind, 6 effluent exceedances, latest September 30, 2019, largest 21% over the limit.
- E. coli: 2 limits, 3 violations of any kind, 3 effluent exceedances, latest September 30, 2025, largest 99,999% over the limit.
- Nitrogen, ammonia total [as N]: 6 limits, 11 violations of any kind, 2 effluent exceedances, latest June 30, 2026, largest 13% over the limit.
- Chlorine, total residual: 2 limits, 6 violations of any kind, 2 effluent exceedances, latest October 31, 2004, largest 23% over the limit.
- Copper, total [as Cu]: 3 limits, 2 violations of any kind, 2 effluent exceedances, latest April 30, 2026, largest 194% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 13 violations of any kind, 1 effluent exceedance, latest September 30, 2006, largest 36% over the limit.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 10 violations of any kind.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 9 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 9 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 9 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.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 7 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 7 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 7 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: 3 limits, 5 violations of any kind.
- Whole effluent toxicity - retest #1: 3 limits, 4 violations of any kind.
- Whole effluent toxicity - retest #2: 3 limits, 4 violations of any kind.
- Arsenic, dry weight: 5 limits, 2 violations of any kind.
- Chromium, sludge, total, dry weight [as Cr]: 5 limits, 2 violations of any kind.
- Nickel, total [as Ni]: 2 limits, 2 violations of any kind.
- Oxygen, dissolved [DO]: 1 limit, 2 violations of any kind.
- Level of pathogen requirements achieved: 2 limits, 1 violation of any kind.
- Description of pathogen option used: 2 limits, 1 violation of any kind.
- Vector attraction reduction alternative used: 2 limits, 1 violation of any kind.
- Annual amount of sludge land applied: 1 limit, 1 violation of any kind.
- Unit w/liner/leachate collection system: 1 limit, 1 violation of any kind.
- Boundary areas: 1 limit, 1 violation of any kind.
- LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 1 limit, 1 violation of any kind.
- Selenium, dry weight: 3 limits.
- Copper, dry weight: 3 limits.
- Cadmium, dry weight: 3 limits.
- Molybdenum, sludge, total, dry weight [as Mo]: 3 limits.
- Zinc, sludge, total, dry weight [as Zn]: 3 limits.
- Lead, sludge, total, dry weight [as Pb]: 3 limits.
- Nickel, sludge, total, dry weight [as Ni]: 3 limits.
- Mercury, sludge, total, dry weight [as Hg]: 3 limits.
- Fecal coliform: 1 limit.
- Polychlorinated biphenyls [PCBs]: 1 limit.
- Toxicity characteristic leaching procedure: 1 limit.
- Annual whole sludge application rate: 1 limit.
- Ann. amt sludge disposed by other method: 1 limit.
- Annual amt of sludge incinerated: 1 limit.
- Annual sludge production, total: 1 limit.
- Annual amt. sludge disposed surface unit: 1 limit.
- Annual amt sludge disposed in landfill: 1 limit.
- Annual amt sludge transported interstate: 1 limit.
- Compliance w/part 258 sludge requirement: 1 limit.
- Salmonella: 1 limit.
- Pollutant table from 503.13: 1 limit.
- LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit.
- April 21, 2025: Permit Violations - Violation Specified in Comment (ST6).
- July 6, 2023: Permit Violations - Violation Specified in Comment (ST6).
- March 8, 2017: Permit Violations - Violation Specified in Comment (ST6).
Texas holds 1,720 Publicly owned treatment works coverages of this permit type in EPA’s file; 676 were issued before TX0074021.
Coverages issued nearest TX0074021
- 2018-02-05: HARRIS COUNTY UD 16 WWTP, Houston: TX0091481, held by HARRIS COUNTY UD 16
- 2018-02-05: HARRIS COUNTY MUD 391 WWTP, Houston: TX0124770, held by HARRIS COUNTY MUD 391
- 2018-02-08: CLUTE-RICHWOOD WWTP, Richwood: TX0034436, held by CLUTE, CITY OF
- 2018-02-09: CYPRESS-KLEIN UD WWTP, Houston: TX0046779, held by CYPRESS-KLEIN UTILITY DISTRICT
- 2018-02-09: CITY OF FAYETTEVILLE WWTP, Fayetteville: TX0055077, held by CITY OF FAYETTEVILLE
- 2018-02-12: WHITECAP WWTF, Corpus Christi: TX0047121, held by CORPUS CHRISTI, CITY OF
- 2018-02-12: GREENS PARKWAY MUD WWTP, Houston: TX0093475, held by GREENS PARKWAY MUD
- 2018-02-13: HARRIS COUNTY WCID 119 WWTP, Houston: TX0021211, held by HARRIS COUNTY WCID 119
- 2018-02-13: GRACE CREEK WWTP, Longview: TX0022217, held by LONGVIEW, CITY OF
- 2018-02-13: HARRIS COUNTY WCID 76 WWTP, Houston: TX0025291, held by CITY OF HOUSTON
TRAIL OF THE LAKES MUD WWTP among its neighbors
94 discharge permits are in the Garners Bayou subwatershed (HUC 120401040602); TX0074021 is one. Its county: 4,455, 195 major; TX0074021 is major permit.
Other permits in the Garners Bayou subwatershed (HUC 120401040602)
- 10.1 ACRES ATASCOCITA RD, Humble: TXR1501OH, minor, term to 2028-03-04
- 19115 LEE ROAD FACILITY, Humble: TXR05FA60, minor, term to 2026-08-13
- 19175 LEE ROAD FACILITY, Humble: TXR05FA59, minor, term to 2026-08-13
- 19577 LEE ROAD FACILITY, Humble: TXR05FA61, minor, term to 2026-08-13
- AIR GENERAL, Humble: TXRNEX640, minor, term to 2026-08-13
- AIR NEW ZEALAND AT IAH, Houston: TXRNECQ95, minor, term to 2026-08-13
- AMAZONCOM SERVICES IAH5, Humble: TXR05FD70, minor, term to 2026-08-13
- ATASCOCITA REGIONAL WWTP, Houston: TX0058963, major, term to 2022-12-01
- ATASCOCITA REGIONAL WWTP, Humble: TXR05GI42, minor, term to 2026-08-13
- ATASCOCITA VILLAGE MHP WWTP, Harris County: TX0020320, minor, term to 2022-12-01
Identity
| Facility | TRAIL OF THE LAKES MUD WWTP |
|---|---|
| Permittee | TRAIL OF THE LAKES MUD |
| NPDES ID | TX0074021 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Major |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 9, 2018 |
| Expires | December 1, 2022 |
| Address | Humble, TX 77396 |
| Receiving water | WILLIAMS GULLY;GARNERS BAYOU;GREENS BAYOU |
| Subwatershed | Garners Bayou (HUC 120401040602) |
| SIC | 4952 – Sewerage Systems |
NPDES TX0074021: effluent limits and exceedances
TRAIL OF THE LAKES MUD WWTP (NPDES TX0074021): 55 pollutants on file, 55 limited; 33 with a violation of any kind, 7 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 3 | 21 | 12 | February 29, 2008 | 285% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 10 | 6 | September 30, 2019 | 21% over the limit |
| E. coli | 2 | 3 | 3 | September 30, 2025 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 11 | 2 | June 30, 2026 | 13% over the limit |
| Chlorine, total residual | 2 | 6 | 2 | October 31, 2004 | 23% over the limit |
| Copper, total [as Cu] | 3 | 2 | 2 | April 30, 2026 | 194% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 13 | 1 | September 30, 2006 | 36% over the limit |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 2 | 10 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 9 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 9 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 9 | 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 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 7 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 7 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 7 | 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 | 3 | 5 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 4 | 0 | ||
| Whole effluent toxicity - retest #2 | 3 | 4 | 0 | ||
| Arsenic, dry weight | 5 | 2 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 2 | 0 | ||
| Nickel, total [as Ni] | 2 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 2 | 0 | ||
| Level of pathogen requirements achieved | 2 | 1 | 0 | ||
| Description of pathogen option used | 2 | 1 | 0 | ||
| Vector attraction reduction alternative used | 2 | 1 | 0 | ||
| Annual amount of sludge land applied | 1 | 1 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 1 | 0 | ||
| Boundary areas | 1 | 1 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 1 | 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 | ||
| 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 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 | ||
| Compliance w/part 258 sludge requirement | 1 | 0 | 0 | ||
| Salmonella | 1 | 0 | 0 | ||
| Pollutant table from 503.13 | 1 | 0 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 0 | 0 |
NPDES TX0074021: inspections, violations and enforcement
NPDES TX0074021: 3 single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 21, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| July 6, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| March 8, 2017 | Permit Violations - Violation Specified in Comment | ST6 |
NPDES TX0074021 (TRAIL OF THE LAKES MUD WWTP): no inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES TX0074021
NPDES TX0074021: one email when its EPA record changes — $99/month.
Permits near NPDES TX0074021
NPDES TX0074021: 55 pollutant rows, 3 dated events; ICIS-NPDES download, loaded October 14, 2026.