NPDES TX0046841 · Clean Water Act
CHARTERWOOD MUD WWTP, Houston, TX: NPDES TX0046841 discharge permit, effluent exceedances, inspections, penalties
CHARTERWOOD MUD WWTP, Houston, Texas: Individual permit TX0046841, held by CHARTERWOOD MUD; Publicly owned treatment works; Administratively continued; issued March 29, 2018, term to February 1, 2023; discharges to PILLOT GULLY, CYPRESS CREEK.
45 of the 57 pollutants listed for NPDES TX0046841 have no violation or effluent exceedance.
- E. coli: 2 limits, 24 violations of any kind, 18 effluent exceedances, latest August 31, 2024, largest 2,320% over the limit.
- pH: 3 limits, 10 violations of any kind, 4 effluent exceedances, latest February 28, 2011.
- Chlorine, total residual: 2 limits, 11 violations of any kind, 3 effluent exceedances, latest February 28, 2021, largest 10% over the limit.
- Flow, in conduit or thru treatment plant: 4 limits, 14 violations of any kind, 2 effluent exceedances, latest December 31, 2009, largest 3% over the limit.
- Oxygen, dissolved [DO]: 1 limit, 5 violations of any kind, 2 effluent exceedances, latest July 31, 2017, largest 8% over the limit.
- Nitrogen, ammonia total [as N]: 3 limits, 12 violations of any kind, 1 effluent exceedance, latest December 31, 2003, largest 56% over the limit.
- Solids, total dissolved: 3 limits, 12 violations of any kind.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 12 violations of any kind.
- Zinc, total [as Zn]: 3 limits, 9 violations of any kind.
- Solids, total suspended: 3 limits, 6 violations of any kind.
- Chloride [as Cl]: 3 limits, 6 violations of any kind.
- Toxicity characteristic leaching procedure: 1 limit, 1 violation of any kind.
- Arsenic, dry weight: 5 limits.
- Chromium, sludge, total, dry weight [as Cr]: 5 limits.
- Selenium, dry weight: 3 limits.
- Whole effluent toxicity - retest #1: 3 limits.
- Whole effluent toxicity - retest #2: 3 limits.
- Copper, dry weight: 3 limits.
- Cadmium, dry weight: 3 limits.
- Molybdenum, sludge, total, dry weight [as Mo]: 3 limits.
- Zinc, sludge, total, dry weight [as Zn]: 3 limits.
- Lead, sludge, total, dry weight [as Pb]: 3 limits.
- Nickel, sludge, total, dry weight [as Ni]: 3 limits.
- Mercury, sludge, total, dry weight [as Hg]: 3 limits.
- Nickel, total [as Ni]: 2 limits.
- Level of pathogen requirements achieved: 2 limits.
- Description of pathogen option used: 2 limits.
- Vector attraction reduction alternative used: 2 limits.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 2 limits.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas: 2 limits.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas: 2 limits.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas: 2 limits.
- Fecal coliform: 1 limit.
- Polychlorinated biphenyls [PCBs]: 1 limit.
- Annual whole sludge application rate: 1 limit.
- Ann. amt sludge disposed by other method: 1 limit.
- Annual amt of sludge incinerated: 1 limit.
- Annual sludge production, total: 1 limit.
- Annual amount of sludge land applied: 1 limit.
- Annual amt. sludge disposed surface unit: 1 limit.
- Annual amt sludge disposed in landfill: 1 limit.
- Annual amt sludge transported interstate: 1 limit.
- Unit w/liner/leachate collection system: 1 limit.
- Compliance w/part 258 sludge requirement: 1 limit.
- Boundary areas: 1 limit.
- Salmonella: 1 limit.
- Pollutant table from 503.13: 1 limit.
- LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit.
- LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 1 limit.
- June 12, 2025: Permit Violations - Violation Specified in Comment (ST6).
- October 18, 2022: Permit Violations - Violation Specified in Comment (ST6).
- July 9, 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; 735 were issued before TX0046841.
Coverages issued nearest TX0046841
- 2018-03-26: HARRIS COUNTY MUD 434 WWTP, Harris County: TX0127311, held by HARRIS CO MUD 434
- 2018-03-26: GRANT ROAD PUD WWTP, Cypress: TX0134627, held by GRANT ROAD PUD
- 2018-03-29: DOWDELL PUD WWTP, Houston: TX0026255, held by DOWDELL PUD
- 2018-03-29: CITY OF BELLEVUE, Bellevue: TX0027171
- 2018-03-29: LAKE FOREST REGIONAL WWTP, Houston: TX0046833, held by LAKE FOREST PLANT ADVISORY COUNCIL
- 2018-04-09: HARRIS COUNTY WCID 92 WTP, Spring: TX0020974, held by HARRIS COUNTY WCID 92
- 2018-04-09: CROWELL WWTP, Crowell: TX0023370, held by CITY OF CROWELL
- 2018-04-09: SOUTHERN MONTGOMERY CO MUD WWTP, Montgomery County: TX0024759, held by SOUTHERN MONTGOMERY COUNTY MUD
- 2018-04-09: CITY OF GALENA PARK WWTP 1, Galena Park: TX0057185, held by GALENA PARK, CITY OF
- 2018-04-09: NORTH LAREDO WWTP, Laredo: TX0057801, held by CITY OF LAREDO
CHARTERWOOD MUD WWTP among its neighbors
121 discharge permits are in the Marshall Lake-Cypress Creek subwatershed (HUC 120401020106); TX0046841 is one. Its county: 4,455, 195 major; TX0046841 is major permit.
Other permits in the Marshall Lake-Cypress Creek subwatershed (HUC 120401020106)
- ALTA LACEY ROAD, Tomball: TXR1599XG, minor, term to 2028-03-04
- AMPLIFY TOMBALL, Tomball: TXR1556TH, minor, term to 2028-03-04
- APEX OIL & GAS, INC., Houston: GMG290176, minor, term to 2012-09-30
- ASHER SPRING CYPRESS, Houston: TXR1539WZ, minor, term to 2028-03-04
- BAMMEL UTILITY DISTRICT WWTP, Houston: TX0046639, major, term to 2023-05-18
- BEARDED FOX BREWING, Tomball: TXRNECD24, minor, term to 2026-08-13
- BECK AND MASTEN KIA PHASE 2, Tomball: TXR1513YF, minor, term to 2028-03-04
- BILMA PUD - WWTP, Houston: TX0077941, minor, term to 2023-02-01
- BRICCO METAL FINISHING, Cypress: TXR05GL91, minor, term to 2026-08-13
- BRICCO METAL FINISHING, Cypress: TXRNEBU18, minor, term to 2026-08-13
Identity
| Facility | CHARTERWOOD MUD WWTP |
|---|---|
| Permittee | CHARTERWOOD MUD |
| NPDES ID | TX0046841 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Major |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 29, 2018 |
| Expires | February 1, 2023 |
| Address | Houston, TX 77070 |
| Receiving water | PILLOT GULLY, CYPRESS CREEK |
| Subwatershed | Marshall Lake-Cypress Creek (HUC 120401020106) |
| SIC | 4952 – Sewerage Systems |
NPDES TX0046841: effluent limits and exceedances
CHARTERWOOD MUD WWTP (NPDES TX0046841): 57 pollutants on file, 57 limited; 12 with a violation of any kind, 6 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| E. coli | 2 | 24 | 18 | August 31, 2024 | 2,320% over the limit |
| pH | 3 | 10 | 4 | February 28, 2011 | |
| Chlorine, total residual | 2 | 11 | 3 | February 28, 2021 | 10% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 14 | 2 | December 31, 2009 | 3% over the limit |
| Oxygen, dissolved [DO] | 1 | 5 | 2 | July 31, 2017 | 8% over the limit |
| Nitrogen, ammonia total [as N] | 3 | 12 | 1 | December 31, 2003 | 56% over the limit |
| Solids, total dissolved | 3 | 12 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 3 | 12 | 0 | ||
| Zinc, total [as Zn] | 3 | 9 | 0 | ||
| Solids, total suspended | 3 | 6 | 0 | ||
| Chloride [as Cl] | 3 | 6 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 1 | 0 | ||
| Arsenic, dry weight | 5 | 0 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 0 | 0 | ||
| Selenium, dry weight | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 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 | ||
| Level of pathogen requirements achieved | 2 | 0 | 0 | ||
| Description of pathogen option used | 2 | 0 | 0 | ||
| Vector attraction reduction alternative used | 2 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 2 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| Fecal coliform | 1 | 0 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 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 |
NPDES TX0046841: inspections, violations and enforcement
NPDES TX0046841: 3 single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 12, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| October 18, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| July 9, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
NPDES TX0046841 (CHARTERWOOD MUD WWTP): no inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES TX0046841
NPDES TX0046841: one email when its EPA record changes — $99/month.
Permits near NPDES TX0046841
NPDES TX0046841: 57 pollutant rows, 3 dated events; ICIS-NPDES download, loaded October 14, 2026.