Clean Water Act discharge permit · NPDES TX0025623
EL DORADO UTILITY DISTRICT WWTF, Houston, TX: NPDES TX0025623 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 38Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
EL DORADO UTILITY DISTRICT WWTF, held by EL DORADO UTILITY DISTRICT, holds NPDES permit TX0025623, which discharges to Garners Bayou;Greens Bayou. EPA’s file records it issued December 20, 2017 and expiring December 1, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | EL DORADO UTILITY DISTRICT WWTF |
|---|---|
| Permittee as filed | EL DORADO UTILITY DISTRICT |
| NPDES ID | TX0025623 |
| 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 | December 20, 2017 |
| Expiration date | December 1, 2022 |
| Address | Houston, TX 77396 |
| Receiving water | GARNERS BAYOU;GREENS BAYOU |
| Subwatershed | Garners Bayou (HUC 120401040602) |
Cited to the EPA ICIS-NPDES permit file (ECHO 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 3 | 19 | 13 | February 28, 2026 | 117% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 10 | 4 | November 30, 2024 | 103% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 6 | 2 | August 31, 2017 | 11% over the limit |
| E. coli | 2 | 6 | 2 | December 31, 2022 | 1,110% over the limit |
| Oxygen, dissolved [DO] | 1 | 4 | 2 | July 31, 2024 | 34% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 7 | 1 | July 31, 2024 | 99,999% over the limit |
| pH | 3 | 6 | 1 | July 31, 2024 | |
| Chlorine, total residual | 2 | 6 | 0 | ||
| Arsenic, dry weight | 5 | 5 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 5 | 0 | ||
| Selenium, dry weight | 3 | 3 | 0 | ||
| Copper, dry weight | 3 | 3 | 0 | ||
| Cadmium, dry weight | 3 | 3 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 3 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 3 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 3 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 3 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 3 | 0 | ||
| Nickel, total [as Ni] | 2 | 2 | 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 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 2 | 0 | ||
| Fecal coliform | 1 | 1 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 1 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 1 | 0 | ||
| Annual amt of sludge incinerated | 1 | 1 | 0 | ||
| Annual sludge production, total | 1 | 1 | 0 | ||
| Annual amount of sludge land applied | 1 | 1 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 1 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 1 | 0 | ||
| Annual amt sludge transported interstate | 1 | 1 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 1 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 1 | 0 | ||
| Boundary areas | 1 | 1 | 0 | ||
| Salmonella | 1 | 1 | 0 | ||
| Pollutant table from 503.13 | 1 | 1 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 1, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES TX0025623.
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 TX0025623.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID TX0025623 there.
EL DORADO UTILITY DISTRICT WWTF, Houston, Texas: Individual permit TX0025623, held by EL DORADO UTILITY DISTRICT; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued December 20, 2017, term to December 1, 2022; discharges to GARNERS BAYOU;GREENS BAYOU.
- Solids, total suspended: 3 limits, 19 violations of any kind, 13 effluent exceedances, latest February 28, 2026, largest 117% over the limit.
- Nitrogen, ammonia total [as N]: 6 limits, 10 violations of any kind, 4 effluent exceedances, latest November 30, 2024, largest 103% over the limit.
- Flow, in conduit or thru treatment plant: 2 limits, 6 violations of any kind, 2 effluent exceedances, latest August 31, 2017, largest 11% over the limit.
- E. coli: 2 limits, 6 violations of any kind, 2 effluent exceedances, latest December 31, 2022, largest 1,110% over the limit.
- Oxygen, dissolved [DO]: 1 limit, 4 violations of any kind, 2 effluent exceedances, latest July 31, 2024, largest 34% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 7 violations of any kind, 1 effluent exceedance, latest July 31, 2024, largest 99,999% over the limit.
- pH: 3 limits, 6 violations of any kind, 1 effluent exceedance, latest July 31, 2024.
- Chlorine, total residual: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Arsenic, dry weight: 5 limits, 5 violations of any kind, 0 effluent exceedances.
- Chromium, sludge, total, dry weight [as Cr]: 5 limits, 5 violations of any kind, 0 effluent exceedances.
- Selenium, dry weight: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Copper, dry weight: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Cadmium, dry weight: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Molybdenum, sludge, total, dry weight [as Mo]: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Zinc, sludge, total, dry weight [as Zn]: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Lead, sludge, total, dry weight [as Pb]: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Nickel, sludge, total, dry weight [as Ni]: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Mercury, sludge, total, dry weight [as Hg]: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Nickel, total [as Ni]: 2 limits, 2 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.
- Polychlorinated biphenyls [PCBs]: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Fecal coliform: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Toxicity characteristic leaching procedure: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Ann. amt sludge disposed by other method: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amt of sludge incinerated: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual sludge production, total: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amount of sludge land applied: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amt. sludge disposed surface unit: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amt sludge disposed in landfill: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amt sludge transported interstate: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Unit w/liner/leachate collection system: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Compliance w/part 258 sludge requirement: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Boundary areas: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Salmonella: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Pollutant table from 503.13: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual whole sludge application rate: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- July 1, 2025: Permit Violations - Violation Specified in Comment (ST6).
Texas holds 1,720 Publicly owned treatment works coverages of this permit type in EPA’s file; 627 were issued before TX0025623.
Coverages issued nearest TX0025623
- December 13, 2017: NORTH GREEN MUD WWTP, Houston, TX0083381, held by NORTH GREEN MUD
- December 13, 2017: HARRIS COUNTY MUD 202 WWTP, Houston, TX0091901, held by HARRIS COUNTY MUD 202
- December 13, 2017: CEDAR BAYOU WWTP, Houston, TX0103667, held by HOUSTON, CITY OF
- December 13, 2017: HARRIS CO MUD NO 148 WWTP 2, Houston, TX0131482, held by HARRIS COUNTY MUD 148
- December 20, 2017: WILLOWOOD WWTP, Houston, TX0020788, held by HARRIS COUNTY WCID 133
- December 20, 2017: CLINTON PARK WWTP, Houston, TX0035106, held by HOUSTON, CITY OF
- December 20, 2017: MILLS ROAD MUD WWTF, Houston, TX0075132, held by MILLS ROAD MUD
- December 20, 2017: HARRIS COUNTY MUD 86 WWTP, Houston, TX0078824, held by HARRIS COUNTY MUD 86
- December 20, 2017: SAN JACINTO ELEMENTARY WWTP, Conroe, TX0083208, held by CONROE ISD
- December 20, 2017: SOUTHWEST HARRIS CO MUD 1 WWTP, City Of Missouri City, TX0091979, held by SOUTHWEST HARRIS CO MUD 1
EL DORADO UTILITY DISTRICT WWTF among its neighbors
EPA’s permit file holds 94 discharge permits in the Garners Bayou subwatershed (HUC 120401040602), TX0025623 among them. Its county holds 4,455, 195 of them major permits; TX0025623 is a minor permit.
Other permits in the Garners Bayou subwatershed (HUC 120401040602)
- 10.1 ACRES ATASCOCITA RD, Humble: TXR1501OH, minor permit, discharging to GARNERS BAYOU, permit term to March 4, 2028
- 19115 LEE ROAD FACILITY, Humble: TXR05FA60, minor permit, permit term to August 13, 2026
- 19175 LEE ROAD FACILITY, Humble: TXR05FA59, minor permit, permit term to August 13, 2026
- 19577 LEE ROAD FACILITY, Humble: TXR05FA61, minor permit, permit term to August 13, 2026
- AIR GENERAL, Humble: TXRNEX640, minor permit, permit term to August 13, 2026
- AIR NEW ZEALAND AT IAH, Houston: TXRNECQ95, minor permit, permit term to August 13, 2026
- AMAZONCOM SERVICES IAH5, Humble: TXR05FD70, minor permit, permit term to August 13, 2026
- ATASCOCITA REGIONAL WWTP, Houston: TX0058963, major permit, discharging to WILLIAMS GULLY, GARNERS BAYOU, GREE, permit term to December 1, 2022
- ATASCOCITA REGIONAL WWTP, Humble: TXR05GI42, minor permit, permit term to August 13, 2026
- ATASCOCITA VILLAGE MHP WWTP, Harris County: TX0020320, minor permit, discharging to GARNERS BAYOU;GREENS BAYOU TIDAL, permit term to December 1, 2022
Nearby on the register
- Discharge permits in Houston
- Every permit record in Houston, A to Z
- Discharge permits in Texas
- Every permit record in Texas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.