Clean Water Act discharge permit · NPDES TX0117218
DILLEY DOLPH BRISCOE PRISON UNIT, Dilley, TX: NPDES TX0117218 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
DILLEY DOLPH BRISCOE PRISON UNIT, held by DILLEY, CITY OF, holds NPDES permit TX0117218, which discharges to Frio River Above Choke. EPA’s file records it issued September 20, 2021 and expiring September 20, 2026.
DILLEY DOLPH BRISCOE PRISON UNIT, Dilley, Texas: Individual permit TX0117218, held by DILLEY, CITY OF; Publicly owned treatment works; Effective; issued September 20, 2021, term to September 20, 2026; discharges to FRIO RIVER ABOVE CHOKE.
- E. coli: 2 limits, 195 violations of any kind, 171 effluent exceedances, latest October 31, 2025, largest 1,820% over the limit.
- Solids, total suspended: 2 limits, 93 violations of any kind, 87 effluent exceedances, latest October 31, 2025, largest 354% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 69 violations of any kind, 56 effluent exceedances, latest September 30, 2025, largest 540% over the limit.
- Flow, in conduit or thru treatment plant: 2 limits, 54 violations of any kind, 48 effluent exceedances, latest September 30, 2018, largest 109,900% over the limit.
- pH: 2 limits, 49 violations of any kind, 33 effluent exceedances, latest April 30, 2024.
- Oxygen, dissolved [DO]: 1 limit, 25 violations of any kind, 22 effluent exceedances, latest June 30, 2025, largest 98% over the limit.
- Nitrogen, ammonia total [as N]: 3 limits, 20 violations of any kind, 10 effluent exceedances, latest July 31, 2023, largest 406% over the limit.
- Arsenic, dry weight: 0 limits, 25 violations of any kind, 0 effluent exceedances.
- Chromium, sludge, total, dry weight [as Cr]: 0 limits, 25 violations of any kind, 0 effluent exceedances.
- Selenium, dry weight: 0 limits, 15 violations of any kind, 0 effluent exceedances.
- Copper, dry weight: 0 limits, 15 violations of any kind, 0 effluent exceedances.
- Cadmium, dry weight: 0 limits, 15 violations of any kind, 0 effluent exceedances.
- Molybdenum, sludge, total, dry weight [as Mo]: 0 limits, 15 violations of any kind, 0 effluent exceedances.
- Zinc, sludge, total, dry weight [as Zn]: 0 limits, 15 violations of any kind, 0 effluent exceedances.
- Lead, sludge, total, dry weight [as Pb]: 0 limits, 15 violations of any kind, 0 effluent exceedances.
- Nickel, sludge, total, dry weight [as Ni]: 0 limits, 15 violations of any kind, 0 effluent exceedances.
- Mercury, sludge, total, dry weight [as Hg]: 0 limits, 15 violations of any kind, 0 effluent exceedances.
- Nickel, total [as Ni]: 0 limits, 10 violations of any kind, 0 effluent exceedances.
- Level of pathogen requirements achieved: 0 limits, 10 violations of any kind, 0 effluent exceedances.
- Description of pathogen option used: 0 limits, 10 violations of any kind, 0 effluent exceedances.
- Vector attraction reduction alternative used: 0 limits, 10 violations of any kind, 0 effluent exceedances.
- Compliance w/part 258 sludge requirement: 0 limits, 7 violations of any kind, 0 effluent exceedances.
- Annual amt sludge disposed in landfill: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Fecal coliform: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- Polychlorinated biphenyls [PCBs]: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- Toxicity characteristic leaching procedure: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- Ann. amt sludge disposed by other method: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- Annual amt of sludge incinerated: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- Annual sludge production, total: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- Annual amount of sludge land applied: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- Annual amt. sludge disposed surface unit: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- Annual amt sludge transported interstate: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- Unit w/liner/leachate collection system: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- Boundary areas: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- Salmonella: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- Pollutant table from 503.13: 0 limits, 5 violations of any kind, 0 effluent exceedances.
- October 21, 2025: Permit Violations - Violation Specified in Comment (ST6).
- February 15, 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; 1,565 were issued before TX0117218. DILLEY, CITY OF holds 3 permits in Texas.
Other permits held by DILLEY, CITY OF
- CITY OF DILLEY WWTP, Dilley: TX0115282, issued May 19, 2009
- CITY OF DILLEY WTP, Dilley: TX0137928, issued January 31, 2018
Coverages issued nearest TX0117218
- August 19, 2021: EAST TAWAKONI WWTF, East Tawakoni, TX0101303, held by EAST TAWAKONI, CITY OF
- August 30, 2021: CITY OF ARP WWTF, Arp, TX0054194, held by ARP, CITY OF
- August 31, 2021: SPLENDORA CROSSING WWTP, Splendora, TX0140872, held by EAST MONTGOMERY COUNTY MUNICIPAL UTILITY DISTRICT 14
- August 31, 2021: KYNDWOOD WWTP, City Of New Braunfels, TX0141054, held by CRYSTAL CLEAR SPECIAL UTILITY DISTRICT
- September 16, 2021: CITY OF NOCONA SOUTH WWTP, Nocona, TX0042668, held by NOCONA, CITY OF
- September 23, 2021: CITY OF NEW BOSTON WWTP, New Boston, TX0026018, held by NEW BOSTON, CITY OF
- September 27, 2021: ALEDO WWTP, Aledo, TX0027120, held by ALEDO, CITY OF
- September 28, 2021: KNOX RANCH WWTP, Granbury, TX0140619, held by HOOD COUNTY GRANBURY MUD NO 1
- September 30, 2021: WEST HARRIS COUNTY MUD NO 11 WWTF, Houston, TX0111937, held by WEST HARRIS COUNTY MUD 11
- September 30, 2021: TOLEDO BEND DAM, Burkeville, TX0130109, held by SABINE RIVER AUTHORITY OF LOUISIANA
DILLEY DOLPH BRISCOE PRISON UNIT among its neighbors
EPA’s permit file holds 2 discharge permits in the Town of Millet-Cibolo Creek subwatershed (HUC 121101080205), TX0117218 among them. Its county holds 17, 1 of them major permits; TX0117218 is a minor permit.
Other permits in the Town of Millet-Cibolo Creek subwatershed (HUC 121101080205)
- TEXAS MATERIALS MILLETT PLANT, Cotulla: TXR05EZ69, minor permit, permit term to August 13, 2026
Identity
| Facility as filed | DILLEY DOLPH BRISCOE PRISON UNIT |
|---|---|
| Permittee as filed | DILLEY, CITY OF |
| NPDES ID | TX0117218 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 20, 2021 |
| Expiration date | September 20, 2026 |
| Address | Dilley, TX 78017 |
| Receiving water | FRIO RIVER ABOVE CHOKE |
| Subwatershed | Town of Millet-Cibolo Creek (HUC 121101080205) |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 36Pollutants on file
- 7Under a numeric limit
- 36With 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 |
|---|---|---|---|---|---|
| E. coli | 2 | 195 | 171 | October 31, 2025 | 1,820% over the limit |
| Solids, total suspended | 2 | 93 | 87 | October 31, 2025 | 354% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 69 | 56 | September 30, 2025 | 540% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 54 | 48 | September 30, 2018 | 109,900% over the limit |
| pH | 2 | 49 | 33 | April 30, 2024 | |
| Oxygen, dissolved [DO] | 1 | 25 | 22 | June 30, 2025 | 98% over the limit |
| Nitrogen, ammonia total [as N] | 3 | 20 | 10 | July 31, 2023 | 406% over the limit |
| Arsenic, dry weight | 0 | 25 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 0 | 25 | 0 | ||
| Selenium, dry weight | 0 | 15 | 0 | ||
| Copper, dry weight | 0 | 15 | 0 | ||
| Cadmium, dry weight | 0 | 15 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 0 | 15 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 0 | 15 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 0 | 15 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 0 | 15 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 0 | 15 | 0 | ||
| Nickel, total [as Ni] | 0 | 10 | 0 | ||
| Level of pathogen requirements achieved | 0 | 10 | 0 | ||
| Description of pathogen option used | 0 | 10 | 0 | ||
| Vector attraction reduction alternative used | 0 | 10 | 0 | ||
| Compliance w/part 258 sludge requirement | 0 | 7 | 0 | ||
| Annual amt sludge disposed in landfill | 0 | 6 | 0 | ||
| Fecal coliform | 0 | 5 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 0 | 5 | 0 | ||
| Toxicity characteristic leaching procedure | 0 | 5 | 0 | ||
| Ann. amt sludge disposed by other method | 0 | 5 | 0 | ||
| Annual amt of sludge incinerated | 0 | 5 | 0 | ||
| Annual sludge production, total | 0 | 5 | 0 | ||
| Annual amount of sludge land applied | 0 | 5 | 0 | ||
| Annual amt. sludge disposed surface unit | 0 | 5 | 0 | ||
| Annual amt sludge transported interstate | 0 | 5 | 0 | ||
| Unit w/liner/leachate collection system | 0 | 5 | 0 | ||
| Boundary areas | 0 | 5 | 0 | ||
| Salmonella | 0 | 5 | 0 | ||
| Pollutant table from 503.13 | 0 | 5 | 0 |
Inspections, violations and enforcement
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 21, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| February 15, 2017 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES TX0117218.
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 TX0117218.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.