Clean Water Act discharge permit · NPDES TX0068845
CITY OF WILLIS WWTP, Montgomery County, TX: NPDES TX0068845 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 38Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
CITY OF WILLIS WWTP, held by WILLIS, CITY OF, holds NPDES permit TX0068845, which discharges to E Fork Crystal Crk;Crystal Crk;W Fork San Jacinto. EPA’s file records it issued February 11, 2019 and expiring February 11, 2024.
CITY OF WILLIS WWTP, Montgomery County, Texas: Individual permit TX0068845, held by WILLIS, CITY OF; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued February 11, 2019, term to February 11, 2024; discharges to E FORK CRYSTAL CRK;CRYSTAL CRK;W FORK SAN JACINTO.
- Nitrogen, ammonia total [as N]: 6 limits, 24 violations of any kind, 15 effluent exceedances, latest June 30, 2015, largest 147% over the limit.
- Chlorine, total residual: 4 limits, 52 violations of any kind, 10 effluent exceedances, latest October 31, 2009, largest 20% over the limit.
- Flow, in conduit or thru treatment plant: 4 limits, 14 violations of any kind, 2 effluent exceedances, latest June 30, 2004, largest 12% over the limit.
- Solids, total suspended: 6 limits, 11 violations of any kind, 2 effluent exceedances, latest January 31, 2026, largest 38% over the limit.
- pH: 3 limits, 9 violations of any kind, 1 effluent exceedance, latest June 30, 2006.
- E. coli: 2 limits, 7 violations of any kind, 1 effluent exceedance, latest November 30, 2025, largest 36% over the limit.
- Oxygen, dissolved [DO]: 1 limit, 4 violations of any kind, 1 effluent exceedance, latest October 31, 2005, largest 18% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 6 limits, 9 violations of any kind, 0 effluent exceedances.
- Polychlorinated biphenyls [PCBs]: 1 limit, 4 violations of any kind, 0 effluent exceedances.
- Arsenic, dry weight: 5 limits, 3 violations of any kind, 0 effluent exceedances.
- Chromium, sludge, total, dry weight [as Cr]: 5 limits, 3 violations of any kind, 0 effluent exceedances.
- Nickel, total [as Ni]: 2 limits, 3 violations of any kind, 0 effluent exceedances.
- Toxicity characteristic leaching procedure: 1 limit, 3 violations of any kind, 0 effluent exceedances.
- Level of pathogen requirements achieved: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Description of pathogen option used: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Vector attraction reduction alternative used: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Ann. amt sludge disposed by other method: 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 sludge production, total: 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.
- Annual amt sludge disposed in landfill: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Annual amt sludge transported interstate: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Unit w/liner/leachate collection system: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Boundary areas: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Selenium, dry weight: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Copper, dry weight: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Cadmium, dry weight: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Molybdenum, sludge, total, dry weight [as Mo]: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Zinc, sludge, total, dry weight [as Zn]: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Lead, sludge, total, dry weight [as Pb]: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Nickel, sludge, total, dry weight [as Ni]: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Mercury, sludge, total, dry weight [as Hg]: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Compliance w/part 258 sludge requirement: 1 limit, 1 violation 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.
- 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.
- March 10, 2026: Permit Violations - Violation Specified in Comment (ST6).
- March 10, 2026: Focused (S).
- January 9, 2025: Permit Violations - Violation Specified in Comment (ST6).
- November 15, 2023: Permit Violations - Violation Specified in Comment (ST6).
Texas holds 1,720 Publicly owned treatment works coverages of this permit type in EPA’s file; 1,003 were issued before TX0068845.
Coverages issued nearest TX0068845
- February 4, 2019: LONDONDERRY WWTP, Harris County, TX0058530, held by HARRIS COUNTY MUD 1
- February 4, 2019: HORIZON REGIONAL MUD WWTP, El Paso County, TX0086045, held by HORIZON REGIONAL MUD
- February 11, 2019: COMMODORE COVE WWTF, Brazoria County, TX0025283, held by COMMODORE COVE IMPROVEMENT DISTRICT
- February 11, 2019: CITY OF WHITE OAK WWTP, White Oak, TX0026531, held by WHITE OAK, CITY OF
- February 11, 2019: CITY OF WHITEWRIGHT WWTP, Whitewright, TX0033294, held by WHITEWRIGHT, CITY OF
- February 11, 2019: STILLHOUSE BRANCH WWTP, Coryell County, TX0111791, held by GATESVILLE, CITY OF
- February 11, 2019: STEEP BANK FLAT BANK CREEK WWTP, Missouri City, TX0114855, held by MISSOURI CITY, CITY OF
- February 13, 2019: POLLARD CREEK WWTP, Mineral Wells, TX0047414, held by MINERAL WELLS, CITY OF
- February 14, 2019: BREMOND WWTP, Bremond, TX0023442, held by BREMOND, CITY OF
- February 19, 2019: CITY OF WHITESBORO WWTP, Whitesboro, TX0023566, held by WHITESBORO, CITY OF
CITY OF WILLIS WWTP among its neighbors
EPA’s permit file holds 96 discharge permits in the Crystal Creek subwatershed (HUC 120401010403), TX0068845 among them. Its county holds 1,439, 16 of them major permits; TX0068845 is a minor permit.
Other permits in the Crystal Creek subwatershed (HUC 120401010403)
- A-1 HOMES, Conroe: TXR1568OC, minor permit, discharging to WEST FORK OF CRYSTAL CREEK, permit term to March 4, 2028
- AMERITEX HDPE, Conroe: TXR1564QZ, minor permit, discharging to EAST FORK CRYSTAL CREEK, permit term to March 4, 2028
- ARCOSA CONROE, Conroe: TXR1577YT, minor permit, discharging to WEST FORK CRYSTAL CREEK, permit term to March 4, 2028
- ASM - WILLIS, Willis: TXR05GQ72, minor permit, permit term to August 13, 2026
- BRIGHT MORNING STAR PLACE, Conroe: TXR1522TI, minor permit, discharging to WEST FORK OF CRYSTAL CREEK, permit term to March 4, 2028
- BUILDERS FIRSTSOURCE TRUSS PLANT CNS, Conroe: TXR1598MF, minor permit, permit term to March 4, 2028
- CANEY MILLS PHASE 3 DETENTION & MASS GRADING, Conroe: TXR1523OI, minor permit, discharging to UNNAMED TRIBUTARY, permit term to March 4, 2028
- CANEY MILLS SEC 9, Conroe: TXR1503YN, minor permit, discharging to CANEY CREEK, permit term to March 4, 2028
- CANEY MILLS SUBDIVISION, Conroe: TXR1555EK, minor permit, discharging to CANEY CREEK, permit term to March 4, 2023
- CANEY MILLS SUBDIVISION, Conroe: TXR1591OC, minor permit, discharging to CANEY CREEK, permit term to March 4, 2028
Identity
| Facility as filed | CITY OF WILLIS WWTP |
|---|---|
| Permittee as filed | WILLIS, CITY OF |
| NPDES ID | TX0068845 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 11, 2019 |
| Expiration date | February 11, 2024 |
| Address | Montgomery County, TX 77378 |
| Receiving water | E FORK CRYSTAL CRK;CRYSTAL CRK;W FORK SAN JACINTO |
| Subwatershed | Crystal Creek (HUC 120401010403) |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 38Pollutants on file
- 38Under a numeric limit
- 34With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 6 | 24 | 15 | June 30, 2015 | 147% over the limit |
| Chlorine, total residual | 4 | 52 | 10 | October 31, 2009 | 20% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 14 | 2 | June 30, 2004 | 12% over the limit |
| Solids, total suspended | 6 | 11 | 2 | January 31, 2026 | 38% over the limit |
| pH | 3 | 9 | 1 | June 30, 2006 | |
| E. coli | 2 | 7 | 1 | November 30, 2025 | 36% over the limit |
| Oxygen, dissolved [DO] | 1 | 4 | 1 | October 31, 2005 | 18% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 9 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 4 | 0 | ||
| Arsenic, dry weight | 5 | 3 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 3 | 0 | ||
| Nickel, total [as Ni] | 2 | 3 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 3 | 0 | ||
| Level of pathogen requirements achieved | 2 | 2 | 0 | ||
| Description of pathogen option used | 2 | 2 | 0 | ||
| Vector attraction reduction alternative used | 2 | 2 | 0 | ||
| Ann. amt sludge disposed by other method | 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 disposed in landfill | 1 | 2 | 0 | ||
| Annual amt sludge transported interstate | 1 | 2 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 2 | 0 | ||
| Boundary areas | 1 | 2 | 0 | ||
| Selenium, dry weight | 3 | 1 | 0 | ||
| Copper, dry weight | 3 | 1 | 0 | ||
| Cadmium, dry weight | 3 | 1 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 1 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 1 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 1 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 1 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 1 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 1 | 0 | ||
| Fecal coliform | 1 | 0 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 | ||
| Salmonella | 1 | 0 | 0 | ||
| Pollutant table from 503.13 | 1 | 0 | 0 |
Inspections, violations and enforcement
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 10, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| January 9, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| November 15, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| March 10, 2026 | Focused | S |
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 TX0068845.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.