Clean Water Act discharge permit · NPDES TX0086690
HARRIS COUNTY MUD 345 WWTF, Houston, TX: NPDES TX0086690 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 38Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
HARRIS COUNTY MUD 345 WWTF, held by HARRIS COUNTY MUD 345, holds NPDES permit TX0086690, which discharges to Hcfcdd T-104-00-00; T104-01-00. EPA’s file records it issued August 10, 2017 and expiring May 1, 2022.
HARRIS COUNTY MUD 345 WWTF, Houston, Texas: Individual permit TX0086690, held by HARRIS COUNTY MUD 345; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued August 10, 2017, term to May 1, 2022; discharges to HCFCDD T-104-00-00; T104-01-00.
- Nitrogen, ammonia total [as N]: 3 limits, 10 violations of any kind, 10 effluent exceedances, latest May 31, 2024, largest 355% over the limit.
- E. coli: 2 limits, 9 violations of any kind, 7 effluent exceedances, latest March 31, 2025, largest 1,110% over the limit.
- Solids, total suspended: 3 limits, 6 violations of any kind, 6 effluent exceedances, latest April 30, 2026, largest 127% over the limit.
- Chlorine, total residual: 2 limits, 2 violations of any kind, 2 effluent exceedances, latest November 30, 2015, largest 49% over the limit.
- 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.
- pH: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Fecal coliform: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Polychlorinated biphenyls [PCBs]: 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.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Oxygen, dissolved [DO]: 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.
- November 14, 2023: Permit Violations - Violation Specified in Comment (ST6).
Texas holds 1,720 Publicly owned treatment works coverages of this permit type in EPA’s file; 544 were issued before TX0086690.
Coverages issued nearest TX0086690
- August 2, 2017: GRAND LAKES REGIONAL WWTP, Fort Bend County, TX0099856, held by GRAND LAKES MUD 4
- August 4, 2017: COPPERFIELD PLANT WWTP, Houston, TX0075884, held by HARRIS COUNTY MUD 208
- August 4, 2017: HIGHLANDS OF SALADO WWTF, Bell County, TX0125610, held by VILLAGE OF SALADO
- August 9, 2017: HARRIS COUNTY MUD 127 WWTP, Katy, TX0083500, held by HARRIS COUNTY MUD 127
- August 9, 2017: FORT BEND COUNTY MUD 30 WWTP2, Richmond, TX0135259, held by FORT BEND COUNTY MUD 30
- August 16, 2017: GREENWOOD UTILITY DISTRICT WWTP, Houston, TX0020800, held by GREENWOOD UTILITY DISTRICT
- August 18, 2017: STANLEY LAKE MUD WWTP, Conroe, TX0022063, held by STANLEY LAKE MUD
- August 18, 2017: POINT AQUARIUS MUD WWTP, Willis, TX0022071, held by POINT AQUARIUS MUD
- August 18, 2017: MONTGOMERY COUNTY MUD 2 WWTP, Montgomery County, TX0032514, held by MONTGOMERY COUNTY UTILITY DISTRICT NO 2
- August 18, 2017: LAKE CONROE HILLS MUD WWTP, Willis, TX0054364, held by LAKE CONROE HILLS MUD
HARRIS COUNTY MUD 345 WWTF among its neighbors
EPA’s permit file holds 113 discharge permits in the Barker Reservoir-Buffalo Bayou subwatershed (HUC 120401040104), TX0086690 among them. Its county holds 4,455, 195 of them major permits; TX0086690 is a minor permit.
Other permits in the Barker Reservoir-Buffalo Bayou subwatershed (HUC 120401040104)
- 66 WATERLINE ALONG KINDER MORGAN CORRIDOR, Katy: TXR1542SS, minor permit, discharging to MASON CREEK, permit term to March 4, 2028
- ADDICKS RESERVOIR, Houston: TXR1506XW, minor permit, discharging to BUFFALO BAYOU, permit term to March 4, 2028
- ANDRETTI INDOOR KARTING AND GAMES, Katy: TXR15152X, minor permit, discharging to MASON CREEK, permit term to March 4, 2023
- BABACAR DIGNE, Katy: TXRNECG75, minor permit, permit term to August 13, 2026
- BECK JUNIOR HIGH ADDITIONS AND RENOVATIONS, Katy: TXR1550XP, minor permit, discharging to BUFFALO BAYOU/BARKER RESERVOIR, permit term to March 4, 2028
- BING SOUTH APARTMENTS, Katy: TXR1517VA, minor permit, discharging to BUFFALO BAYOU/BARKER RESERVOIR, permit term to March 4, 2028
- BING SOUTH APARTMENTS, Katy: TXR1535VA, minor permit, discharging to BUFFALO BAYOU/BARKER RESERVOIR, permit term to March 4, 2028
- CASTLEWOOD MUD WWTP, Houston: TX0071625, major permit, discharging to UNNAMED TRIB, MASON CREEK, BUFFALO, permit term to May 1, 2022
- CHASE BANK - KATY MARKETPLACE, Katy: TXR1566SP, minor permit, discharging to UNNAMED TRIBUTARY TO MASON CREEK, permit term to March 4, 2028
- CIMARRON MUD MS4, Houston: TXR040660, minor permit, discharging to BUFFALO BAYOU, permit term to January 23, 2024
Identity
| Facility as filed | HARRIS COUNTY MUD 345 WWTF |
|---|---|
| Permittee as filed | HARRIS COUNTY MUD 345 |
| NPDES ID | TX0086690 |
| 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 | August 10, 2017 |
| Expiration date | May 1, 2022 |
| Address | Houston, TX 77056 |
| Receiving water | HCFCDD T-104-00-00; T104-01-00 |
| Subwatershed | Barker Reservoir-Buffalo Bayou (HUC 120401040104) |
Effluent limits and exceedances
- 38Pollutants on file
- 38Under a numeric limit
- 34With a violation of any kind
- 4With 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 | 10 | 10 | May 31, 2024 | 355% over the limit |
| E. coli | 2 | 9 | 7 | March 31, 2025 | 1,110% over the limit |
| Solids, total suspended | 3 | 6 | 6 | April 30, 2026 | 127% over the limit |
| Chlorine, total residual | 2 | 2 | 2 | November 30, 2015 | 49% over the limit |
| 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 | ||
| pH | 3 | 1 | 0 | ||
| Fecal coliform | 1 | 1 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 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 | ||
| BOD, carbonaceous [5 day, 20 C] | 3 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 |
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 14, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES TX0086690.
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 TX0086690.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.