Clean Water Act discharge permit · NPDES TX0047830
CITY OF DALLAS CENTRAL WWTP, Dallas, TX: NPDES TX0047830 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 54Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
- 2Inspections on file
- 0Formal enforcement actions
CITY OF DALLAS CENTRAL WWTP, held by CITY OF DALLAS, holds NPDES permit TX0047830, which discharges to Directly Upper Trinity River. EPA’s file records it issued January 12, 2017 and expiring December 1, 2021.
CITY OF DALLAS CENTRAL WWTP, Dallas, Texas: Individual permit TX0047830, held by CITY OF DALLAS; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued January 12, 2017, term to December 1, 2021; discharges to DIRECTLY UPPER TRINITY RIVER.
- E. coli: 2 limits, 34 violations of any kind, 34 effluent exceedances, latest May 31, 2026, largest 99,999% over the limit.
- Nitrogen, ammonia total [as N]: 6 limits, 6 violations of any kind, 6 effluent exceedances, latest February 28, 2025, largest 58% over the limit.
- Oxygen, dissolved [DO]: 1 limit, 2 violations of any kind, 2 effluent exceedances, latest March 31, 2024, largest 20% over the limit.
- pH: 3 limits, 1 violation of any kind, 1 effluent exceedance, latest October 31, 2008.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 1 violation of any kind, 1 effluent exceedance, latest June 30, 2019, largest 6% over the limit.
- Flow, in conduit or thru treatment plant: 4 limits, 2 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #1: 7 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #2: 7 limits, 0 violations 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.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Selenium, dry weight: 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.
- Chlorine, total residual: 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.
- Fecal coliform: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Polychlorinated biphenyls [PCBs]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Toxicity characteristic leaching procedure: 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.
- Ann. amt sludge disposed by other method: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Annual amt of sludge incinerated: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Annual sludge production, total: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Annual amount of sludge land applied: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Annual amt. sludge disposed surface unit: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Annual amt sludge disposed in landfill: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Annual amt sludge transported interstate: 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.
- Compliance w/part 258 sludge requirement: 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.
- LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- August 5, 2026: Permit Violations - Violation Specified in Comment (ST6).
- August 5, 2026: Focused (S).
- February 19, 2026: Permit Violations - Violation Specified in Comment (ST6).
- February 19, 2026: Evaluation (S).
- February 21, 2024: Permit Violations - Violation Specified in Comment (ST6).
- May 16, 2023: Permit Violations - Violation Specified in Comment (ST6).
- October 13, 2022: Permit Violations - Violation Specified in Comment (ST6).
- August 22, 2022: Permit Violations - Violation Specified in Comment (ST6).
- March 16, 2022: Permit Violations - Violation Specified in Comment (ST6).
- October 1, 2020: Permit Violations - Violation Specified in Comment (ST6).
- May 31, 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; 382 were issued before TX0047830. CITY OF DALLAS holds 2 permits in Texas.
Other permits held by CITY OF DALLAS
- BACHMAN WTP, Dallas: TX0002381, issued May 9, 2017
Coverages issued nearest TX0047830
- December 27, 2016: ANGELINA COUNTY FWSD NO 1 WWTP, Lufkin, TX0133329, held by ANGELINA COUNTY FRESH WATER SUPPLY DISTRICT NO 1
- December 29, 2016: SIENNA PLANTATION WWTP, Fort Bend County, TX0119199, held by MISSOURI CITY, CITY OF
- January 10, 2017: CITY OF WOODVILLE SOUTH WWTP, Woodville, TX0025828, held by CITY OF WOODVILLE
- January 10, 2017: STEWART CREEK WWTP, Denton County, TX0053112, held by THE COLONY, CITY OF
- January 12, 2017: CITY OF DALLAS ELM FORK WTP, Carrollton, TX0002372, held by DALLAS, CITY OF
- January 12, 2017: RICHARDS ISD WWTP, Richards, TX0106119, held by RICHARDS ISD
- January 13, 2017: CITY OF MASON WWTP, Mason, TX0071111, held by MASON, CITY OF
- January 13, 2017: BEAR CREEK WWTP, Lavon, TX0127345, held by LAVON, CITY OF
- January 19, 2017: CITY OF ATHENS NORTH WWTP, Athens, TX0025372, held by ATHENS, CITY OF
- January 20, 2017: CITY OF SPRINGTOWN WWTP, Springtown, TX0032646, held by SPRINGTOWN, CITY OF
CITY OF DALLAS CENTRAL WWTP among its neighbors
EPA’s permit file holds 89 discharge permits in the Five Mile Creek-Trinity River subwatershed (HUC 120301050108), TX0047830 among them. Its county holds 1,595, 15 of them major permits; TX0047830 is a major permit.
Other permits in the Five Mile Creek-Trinity River subwatershed (HUC 120301050108)
- 1111 RIVERWOOD ROAD, Dallas: TXR1540OC, minor permit, discharging to TRINITY RIVER, permit term to March 4, 2028
- 2004 DAVIS 750-LS PUGMILL, Dallas: TXR05GX29, minor permit, permit term to August 13, 2026
- 84 CEDAR CREST TUNNEL NO 22-445, Dallas: TXR1595PM, minor permit, discharging to UPPER TRINITY RIVER, permit term to March 4, 2028
- ALL STAR PALLET, Dallas: TXR05FT56, minor permit, permit term to August 13, 2026
- ALLIED ALLOYS, Dallas: TXR05FW12, minor permit, permit term to August 13, 2026
- AMAZONCOM SERVICES FTW1, Dallas: TXR05FC73, minor permit, permit term to August 13, 2026
- AMAZONCOM SERVICES FTW8, Dallas: TXR05GN97, minor permit, permit term to August 13, 2026
- AMAZONCOM SERVICES LLC - HTX3, Dallas: TXR05GU90, minor permit, permit term to August 13, 2026
- B & B SIGN SYSTEM, Dallas: TXRNECD92, minor permit, permit term to August 13, 2026
- B&B AUTO SALVAGE, Dallas: TXR05FV40, minor permit, permit term to August 13, 2026
Identity
| Facility as filed | CITY OF DALLAS CENTRAL WWTP |
|---|---|
| Permittee as filed | CITY OF DALLAS |
| NPDES ID | TX0047830 |
| 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 | January 12, 2017 |
| Expiration date | December 1, 2021 |
| Address | Dallas, TX 75203 |
| Receiving water | DIRECTLY UPPER TRINITY RIVER |
| Subwatershed | Five Mile Creek-Trinity River (HUC 120301050108) |
| Program components on file | POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 54Pollutants on file
- 54Under a numeric limit
- 6With a violation of any kind
- 5With 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 | 34 | 34 | May 31, 2026 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 6 | 6 | February 28, 2025 | 58% over the limit |
| Oxygen, dissolved [DO] | 1 | 2 | 2 | March 31, 2024 | 20% over the limit |
| pH | 3 | 1 | 1 | October 31, 2008 | |
| BOD, carbonaceous [5 day, 20 C] | 3 | 1 | 1 | June 30, 2019 | 6% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 2 | 0 | ||
| Whole effluent toxicity - retest #1 | 7 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 7 | 0 | 0 | ||
| Arsenic, dry weight | 5 | 0 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 4 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 0 | ||
| Solids, total suspended | 3 | 0 | 0 | ||
| Selenium, dry weight | 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 | ||
| Chlorine, total residual | 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 | ||
| Fecal coliform | 1 | 0 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 0 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 0 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 0 | 0 | ||
| Annual amt of sludge incinerated | 1 | 0 | 0 | ||
| Annual sludge production, total | 1 | 0 | 0 | ||
| Annual amount of sludge land applied | 1 | 0 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 0 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 0 | 0 | ||
| Annual amt sludge transported interstate | 1 | 0 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 0 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 0 | 0 | ||
| Boundary areas | 1 | 0 | 0 | ||
| Salmonella | 1 | 0 | 0 | ||
| Pollutant table from 503.13 | 1 | 0 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 0 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 0 | 0 |
Inspections, violations and enforcement
- 9Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 5, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| February 19, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| February 21, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| May 16, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| October 13, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| August 22, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| March 16, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| October 1, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
| May 31, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| August 5, 2026 | Focused | S |
| February 19, 2026 | Evaluation | 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 TX0047830.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.