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
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. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
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) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
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 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
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 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.