Clean Water Act discharge permit · NPDES TX0128392
CITY OF CADDO MILLS WWTF, Hunt County, TX: NPDES TX0128392 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 38Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
CITY OF CADDO MILLS WWTF, held by CADDO MILLS, CITY OF, holds NPDES permit TX0128392, which discharges to West Caddo Creek; Lake Tawakoni. EPA’s file records it issued June 3, 2016 and expiring March 1, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CITY OF CADDO MILLS WWTF |
|---|---|
| Permittee as filed | CADDO MILLS, CITY OF |
| NPDES ID | TX0128392 |
| 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 | June 3, 2016 |
| Expiration date | March 1, 2021 |
| Address | Hunt County, TX 75135 |
| Receiving water | WEST CADDO CREEK; LAKE TAWAKONI |
| Subwatershed | West Caddo Creek (HUC 120100010201) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 38Pollutants on file
- 38Under a numeric limit
- 37With 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] | 3 | 74 | 65 | March 31, 2022 | 746% over the limit |
| Solids, total suspended | 3 | 19 | 10 | January 31, 2022 | 80% over the limit |
| E. coli | 2 | 16 | 10 | February 28, 2022 | 1,821% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 16 | 6 | December 31, 2021 | 61% over the limit |
| Chlorine, total residual | 2 | 13 | 4 | December 31, 2021 | 90% over the limit |
| Oxygen, dissolved [DO] | 1 | 6 | 3 | July 31, 2021 | 23% over the limit |
| pH | 3 | 11 | 2 | February 28, 2013 | |
| Chromium, sludge, total, dry weight [as Cr] | 5 | 18 | 0 | ||
| Arsenic, dry weight | 5 | 15 | 0 | ||
| Selenium, dry weight | 3 | 9 | 0 | ||
| Copper, dry weight | 3 | 9 | 0 | ||
| Cadmium, dry weight | 3 | 9 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 9 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 9 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 9 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 9 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 9 | 0 | ||
| Level of pathogen requirements achieved | 2 | 7 | 0 | ||
| Description of pathogen option used | 2 | 7 | 0 | ||
| Vector attraction reduction alternative used | 2 | 7 | 0 | ||
| Nickel, total [as Ni] | 2 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 6 | 0 | ||
| Pollutant table from 503.13 | 1 | 4 | 0 | ||
| Fecal coliform | 1 | 3 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 3 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 3 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 3 | 0 | ||
| Annual amt of sludge incinerated | 1 | 3 | 0 | ||
| Annual amount of sludge land applied | 1 | 3 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 3 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 3 | 0 | ||
| Annual amt sludge transported interstate | 1 | 3 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 3 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 3 | 0 | ||
| Boundary areas | 1 | 3 | 0 | ||
| Salmonella | 1 | 3 | 0 | ||
| Annual sludge production, total | 1 | 2 | 0 | ||
| Annual whole sludge application rate | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 1, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| February 12, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| May 28, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| January 30, 2020 | 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 October 14, 2026.