NPDES TX0075132 · Clean Water Act
MILLS ROAD MUD WWTF, Houston, TX: NPDES TX0075132 discharge permit, effluent exceedances, inspections, penalties
MILLS ROAD MUD WWTF, Houston, Texas: Individual permit TX0075132, held by MILLS ROAD MUD; Publicly owned treatment works; Administratively continued; issued December 20, 2017, term to December 1, 2022; discharges to HCFCDD P161-00-00, GREENS BAYOU ABO.
1 of the 38 pollutants listed for NPDES TX0075132 have no violation or effluent exceedance.
- Nitrogen, ammonia total [as N]: 6 limits, 23 violations of any kind, 11 effluent exceedances, latest May 31, 2025, largest 210% over the limit.
- Chlorine, total residual: 2 limits, 10 violations of any kind, 4 effluent exceedances, latest June 30, 2008, largest 125% over the limit.
- E. coli: 2 limits, 7 violations of any kind, 3 effluent exceedances, latest June 30, 2020, largest 2,320% over the limit.
- Solids, total suspended: 3 limits, 17 violations of any kind, 2 effluent exceedances, latest February 28, 2025, largest 71% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 15 violations of any kind.
- pH: 3 limits, 9 violations of any kind.
- Flow, in conduit or thru treatment plant: 2 limits, 8 violations of any kind.
- Arsenic, dry weight: 5 limits, 5 violations of any kind.
- Chromium, sludge, total, dry weight [as Cr]: 5 limits, 5 violations of any kind.
- Oxygen, dissolved [DO]: 1 limit, 4 violations of any kind.
- Selenium, dry weight: 3 limits, 3 violations of any kind.
- Copper, dry weight: 3 limits, 3 violations of any kind.
- Cadmium, dry weight: 3 limits, 3 violations of any kind.
- Molybdenum, sludge, total, dry weight [as Mo]: 3 limits, 3 violations of any kind.
- Zinc, sludge, total, dry weight [as Zn]: 3 limits, 3 violations of any kind.
- Lead, sludge, total, dry weight [as Pb]: 3 limits, 3 violations of any kind.
- Nickel, sludge, total, dry weight [as Ni]: 3 limits, 3 violations of any kind.
- Mercury, sludge, total, dry weight [as Hg]: 3 limits, 3 violations of any kind.
- Nickel, total [as Ni]: 2 limits, 2 violations of any kind.
- Level of pathogen requirements achieved: 2 limits, 2 violations of any kind.
- Description of pathogen option used: 2 limits, 2 violations of any kind.
- Vector attraction reduction alternative used: 2 limits, 2 violations of any kind.
- Compliance w/part 258 sludge requirement: 1 limit, 2 violations of any kind.
- Fecal coliform: 1 limit, 1 violation of any kind.
- Polychlorinated biphenyls [PCBs]: 1 limit, 1 violation of any kind.
- Toxicity characteristic leaching procedure: 1 limit, 1 violation of any kind.
- Ann. amt sludge disposed by other method: 1 limit, 1 violation of any kind.
- Annual amt of sludge incinerated: 1 limit, 1 violation of any kind.
- Annual sludge production, total: 1 limit, 1 violation of any kind.
- Annual amount of sludge land applied: 1 limit, 1 violation of any kind.
- Annual amt. sludge disposed surface unit: 1 limit, 1 violation of any kind.
- Annual amt sludge disposed in landfill: 1 limit, 1 violation of any kind.
- Annual amt sludge transported interstate: 1 limit, 1 violation of any kind.
- Unit w/liner/leachate collection system: 1 limit, 1 violation of any kind.
- Boundary areas: 1 limit, 1 violation of any kind.
- Salmonella: 1 limit, 1 violation of any kind.
- Pollutant table from 503.13: 1 limit, 1 violation of any kind.
- Annual whole sludge application rate: 1 limit.
- June 18, 2024: 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 TX0075132.
Coverages issued nearest TX0075132
- 2017-12-13: CEDAR BAYOU WWTP, Houston: TX0103667, held by HOUSTON, CITY OF
- 2017-12-13: HARRIS CO MUD NO 148 WWTP 2, Houston: TX0131482, held by HARRIS COUNTY MUD 148
- 2017-12-20: WILLOWOOD WWTP, Houston: TX0020788, held by HARRIS COUNTY WCID 133
- 2017-12-20: EL DORADO UTILITY DISTRICT WWTF, Houston: TX0025623, held by EL DORADO UTILITY DISTRICT
- 2017-12-20: CLINTON PARK WWTP, Houston: TX0035106, held by HOUSTON, CITY OF
- 2017-12-20: HARRIS COUNTY MUD 86 WWTP, Houston: TX0078824, held by HARRIS COUNTY MUD 86
- 2017-12-20: SAN JACINTO ELEMENTARY WWTP, Conroe: TX0083208, held by CONROE ISD
- 2017-12-20: SOUTHWEST HARRIS CO MUD 1 WWTP, City Of Missouri City: TX0091979, held by SOUTHWEST HARRIS CO MUD 1
- 2017-12-20: CITY OF WILLOW PARK WWTP, Parker County: TX0099732, held by WILLOW PARK, CITY OF
- 2017-12-20: HARRIS COUNTY MUD 412 WWTP, Houston: TX0126756, held by HARRIS COUNTY MUD NO 412
MILLS ROAD MUD WWTF among its neighbors
100 discharge permits are in the Headwaters Greens Bayou subwatershed (HUC 120401040601); TX0075132 is one. Its county: 4,455, 195 major; TX0075132 is minor permit.
Other permits in the Headwaters Greens Bayou subwatershed (HUC 120401040601)
- 11 BELOW BREWING CO, Houston: TXRNECD26, minor, term to 2026-08-13
- A-J AUTO PARTS, Houston: TXR05EW64, minor, term to 2026-08-13
- AIRTEX LAND, Houston: TXR1501WD, minor, term to 2028-03-04
- AKER SOLUTIONS, City Of Houston: TX0137529, minor, term to 2022-09-01
- AMAZONCOM SERVICES DHO8, Houston: TXR05EW63, minor, term to 2021-08-13
- ARISTOI CLASSICAL ACADEMY, Houston: TXR1568YC, minor, term to 2028-03-04
- AUTO-MOBILE PARTS MANUFACTURING PLANT, Houston: TXRNECN63, minor, term to 2026-08-13
- BAMMEL OAKS, Houston: TXR1514TR, minor, term to 2028-03-04
- CEMEX CUTTEN PLANT, Houston: TXG110921, minor, term to 2011-11-07
- CEMEX CUTTEN READY MIX PLANT, Houston: TXG111783, minor, term to 2021-11-07
Identity
| Facility | MILLS ROAD MUD WWTF |
|---|---|
| Permittee | MILLS ROAD MUD |
| NPDES ID | TX0075132 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Minor |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 20, 2017 |
| Expires | December 1, 2022 |
| Address | Houston, TX 77070 |
| Receiving water | HCFCDD P161-00-00, GREENS BAYOU ABO |
| Subwatershed | Headwaters Greens Bayou (HUC 120401040601) |
NPDES TX0075132: effluent limits and exceedances
MILLS ROAD MUD WWTF (NPDES TX0075132): 38 pollutants on file, 38 limited; 37 with a violation of any kind, 4 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 6 | 23 | 11 | May 31, 2025 | 210% over the limit |
| Chlorine, total residual | 2 | 10 | 4 | June 30, 2008 | 125% over the limit |
| E. coli | 2 | 7 | 3 | June 30, 2020 | 2,320% over the limit |
| Solids, total suspended | 3 | 17 | 2 | February 28, 2025 | 71% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 15 | 0 | ||
| pH | 3 | 9 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 8 | 0 | ||
| Arsenic, dry weight | 5 | 5 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 5 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 4 | 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 | ||
| Compliance w/part 258 sludge requirement | 1 | 2 | 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 | ||
| 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 |
NPDES TX0075132: inspections, violations and enforcement
NPDES TX0075132: 1 single-event violation
| Date | What EPA recorded | Agency |
|---|---|---|
| June 18, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
NPDES TX0075132 (MILLS ROAD MUD WWTF): no inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES TX0075132
NPDES TX0075132: one email when its EPA record changes — $99/month.
Permits near NPDES TX0075132
NPDES TX0075132: 38 pollutant rows, 1 dated events; ICIS-NPDES download, loaded September 15, 2026.