Clean Water Act discharge permit · NPDES TX0088633
WILSON CREEK REGIONAL WWTP, Lucas, TX: NPDES TX0088633 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 51Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
WILSON CREEK REGIONAL WWTP, held by NORTH TEXAS MWD, holds NPDES permit TX0088633, which discharges to Lavon Lake. EPA’s file records it issued October 26, 2017 and expiring October 1, 2021.
WILSON CREEK REGIONAL WWTP, Lucas, Texas: Individual permit TX0088633, held by NORTH TEXAS MWD; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued October 26, 2017, term to October 1, 2021; discharges to LAVON LAKE.
- Phosphorus, total [as P]: 6 limits, 88 violations of any kind, 82 effluent exceedances, latest April 30, 2026, largest 200% over the limit.
- E. coli: 2 limits, 56 violations of any kind, 54 effluent exceedances, latest January 31, 2025, largest 99,999% over the limit.
- Nitrogen, ammonia total [as N]: 6 limits, 51 violations of any kind, 42 effluent exceedances, latest March 31, 2022, largest 184% over the limit.
- Solids, total suspended: 6 limits, 41 violations of any kind, 32 effluent exceedances, latest March 31, 2018, largest 385% over the limit.
- Flow, in conduit or thru treatment plant: 6 limits, 32 violations of any kind, 22 effluent exceedances, latest September 30, 2019, largest 70,765% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 6 limits, 11 violations of any kind, 5 effluent exceedances, latest November 30, 2002, largest 410% over the limit.
- Chlorine, total residual: 2 limits, 5 violations of any kind, 1 effluent exceedance, latest December 31, 2011, largest 99% over the limit.
- pH: 3 limits, 6 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 0 limits, 4 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 0 limits, 4 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 0 limits, 4 violations of any kind, 0 effluent exceedances.
- Oxygen, dissolved [DO]: 1 limit, 3 violations of any kind, 0 effluent exceedances.
- Coliform, fecal general: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 0 limits, 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.
- Ann. amt sludge disposed by other method: 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 sludge production, total: 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.
- Compliance w/part 258 sludge requirement: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 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.
- Whole effluent toxicity - retest #1: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #2: 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.
- IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- IC25 Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 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.
- Unit w/liner/leachate collection system: 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.
- October 21, 2025: Permit Violations - Violation Specified in Comment (ST6).
- September 19, 2023: Permit Violations - Violation Specified in Comment (ST6).
- May 17, 2022: Permit Violations - Violation Specified in Comment (ST6).
- August 6, 2021: Permit Violations - Violation Specified in Comment (ST6).
- February 22, 2021: Permit Violations - Violation Specified in Comment (ST6).
- February 20, 2020: Permit Violations - Violation Specified in Comment (ST6).
- July 16, 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; 604 were issued before TX0088633. NORTH TEXAS MWD holds 12 permits in Texas.
Other permits held by NORTH TEXAS MWD
- WYLIE WTP, Wylie: TX0002143, issued May 21, 2014
- SQUABBLE CREEK WWTP, Rockwall County: TX0022241, issued April 19, 2017
- WYLIE WWTP, Wylie: TX0025950, issued September 30, 2008
- SOUTH MESQUITE CREEK REGIONAL WWTP, Mesquite: TX0047431, issued April 27, 2017
- ROWLETT CREEK REGIONAL WWTP, Plano: TX0047911, issued January 23, 2017
- BUFFALO CREEK WWTP, Rockwall: TX0078565, issued February 21, 2018
- STEWART CREEK WEST WWTP, Denton County: TX0103501, issued August 31, 2017
- PANTHER CREEK WWTP, Denton County: TX0123901, issued April 14, 2021
- TAWAKONI WTP, Terrell: TX0133281, issued June 23, 2016
- NTMWD LEONARD WTP, Leonard: TX0133671, issued January 3, 2018
Coverages issued nearest TX0088633
- October 17, 2017: HARRIS CO MUD 247, Harris County, TX0092606, held by CITY OF JERSEY VILLAGE
- October 17, 2017: JOHNSON COUNTY SUD WWTP, Joshua, TX0124923, held by JOHNSON COUNTY SPECIAL UTILITY DISTRICT
- October 17, 2017: VALLEY RANCH WWTF, Porter, TX0127710, held by VALLEY RANCH MUD NO 1
- October 17, 2017: BIG SKY WWTF, Krum, TX0137138, held by BIG SKY MUD
- October 18, 2017: CITY OF GOODLOW WWTP, Goodlow Park, TX0092223, held by CITY OF GOODLOW
- October 26, 2017: PENITAS WWTP, Webb County, TX0131776, held by LAREDO, CITY OF
- November 2, 2017: EASTHAVEN WWTP, Houston, TX0034886, held by CITY OF HOUSTON
- November 3, 2017: BLUE RIDGE WEST MUD WWTP, Fort Bend County, TX0053643, held by BLUE RIDGE WEST MUD
- November 3, 2017: MONTGOMERY COUNTY MUD 3 & 4 WWTP, Montgomery County, TX0069469, held by MONTGOMERY COUNTY UD NO. 3 AND MONTGOMERY COUNTY UD NO.4
- November 3, 2017: FORT BEND COUNTY MUD 30 WWTP, Houston, TX0078751, held by FORT BEND COUNTY MUD 30
WILSON CREEK REGIONAL WWTP among its neighbors
EPA’s permit file holds 86 discharge permits in the Clemons Creek-East Fork Trinity River subwatershed (HUC 120301060205), TX0088633 among them. Its county holds 1,523, 14 of them major permits; TX0088633 is a major permit.
Other permits in the Clemons Creek-East Fork Trinity River subwatershed (HUC 120301060205)
- 3206 E UNIVERSITY DR, Mckinney: TXR05GD12, minor permit, permit term to August 13, 2026
- 380 PARKING & REPAIR SHOP AKA AA HAIL REPAIR & TR, Mckinney: TXR1562MF, minor permit, discharging to UNNAMED TRIBUTARY TO EAST FORK TRINITY RIVER ABOVE, permit term to March 4, 2028
- 4 HDPE GAS RELOCATION US-380 & THROCKMORTON, Mckinney: TXR1591NV, minor permit, discharging to TRIBUTARY OF EAST FORK TRINITY RIVER, permit term to March 4, 2028
- 90 ACRE PARK - MELISSA, Melissa: TXR1525GT, minor permit, discharging to CLEMONS CREEK, permit term to March 4, 2023
- ASHFORD CROSSING, Lowry Crossing Etj: TXR1588MD, minor permit, discharging to EAST FORK TRINITY RIVER ABOVE LAKE LAVON SEGMENT 0, permit term to March 4, 2028
- ASHFORD CROSSING PHS 2, Lowry Crossing Etj: TXR1534RE, minor permit, discharging to TRIBUTARY OF EAST FORK TRINITY RIVER, permit term to March 4, 2028
- BLOOMDALE INDUSTRIAL, Mckinney: TXR1583WI, minor permit, discharging to UNNAMED TRIBUTARY TO EAST FORK TRINITY RIVER ABOVE, permit term to March 4, 2028
- BMWOFMCKINNEY POGUE, Mckinney: TXR1562MP, minor permit, discharging to EAST FORK TRINITY RIVER ABOVE LAKE LAVON, permit term to March 4, 2028
- CHRISTIE FARM WWTP, Mckinney: TX0146544, not classed
- CHURCH MELISSA, Mckinney: TXR1551VI, minor permit, discharging to CLEMONS CREEK, permit term to March 4, 2028
Identity
| Facility as filed | WILSON CREEK REGIONAL WWTP |
|---|---|
| Permittee as filed | NORTH TEXAS MWD |
| NPDES ID | TX0088633 |
| 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 | October 26, 2017 |
| Expiration date | October 1, 2021 |
| Address | Lucas, TX 75002 |
| Receiving water | LAVON LAKE |
| Subwatershed | Clemons Creek-East Fork Trinity River (HUC 120301060205) |
Effluent limits and exceedances
- 58Pollutants on file
- 51Under a numeric limit
- 28With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Phosphorus, total [as P] | 6 | 88 | 82 | April 30, 2026 | 200% over the limit |
| E. coli | 2 | 56 | 54 | January 31, 2025 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 51 | 42 | March 31, 2022 | 184% over the limit |
| Solids, total suspended | 6 | 41 | 32 | March 31, 2018 | 385% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 32 | 22 | September 30, 2019 | 70,765% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 11 | 5 | November 30, 2002 | 410% over the limit |
| Chlorine, total residual | 2 | 5 | 1 | December 31, 2011 | 99% over the limit |
| pH | 3 | 6 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 4 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 4 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 4 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 3 | 0 | ||
| Coliform, fecal general | 0 | 2 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 0 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 0 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 0 | 2 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 1 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 1 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 1 | 0 | ||
| Annual amt of sludge incinerated | 1 | 1 | 0 | ||
| Annual sludge production, total | 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 | ||
| Compliance w/part 258 sludge requirement | 1 | 1 | 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 | 5 | 0 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 0 | 0 | ||
| Selenium, dry weight | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 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 | ||
| IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| IC25 Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| Fecal coliform | 1 | 0 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 0 | 0 | ||
| Boundary areas | 1 | 0 | 0 | ||
| Salmonella | 1 | 0 | 0 | ||
| Pollutant table from 503.13 | 1 | 0 | 0 |
Inspections, violations and enforcement
- 7Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 21, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| September 19, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| May 17, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| August 6, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| February 22, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| February 20, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
| July 16, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES TX0088633.
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 TX0088633.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.