Clean Water Act discharge permit · NPDES TX0128368
MOSTYN MANOR WWTP, Montgomery County, TX: NPDES TX0128368 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 38Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
MOSTYN MANOR WWTP, held by QUADVEST LP, holds NPDES permit TX0128368, which discharges to Pipeline To Lake Creek. EPA’s file records it issued September 12, 2017 and expiring September 1, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MOSTYN MANOR WWTP |
|---|---|
| Permittee as filed | QUADVEST LP |
| NPDES ID | TX0128368 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 12, 2017 |
| Expiration date | September 1, 2022 |
| Address | Montgomery County, TX 77354 |
| Receiving water | PIPELINE TO LAKE CREEK |
| Subwatershed | Landrum Creek-Lake Creek (HUC 120401010307) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 38Pollutants on file
- 38Under a numeric limit
- 37With a violation of any kind
- 2With 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] | 6 | 27 | 5 | November 30, 2024 | 89% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 37 | 1 | February 28, 2022 | 8% over the limit |
| E. coli | 4 | 86 | 0 | ||
| Solids, total suspended | 6 | 24 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 6 | 24 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 21 | 0 | ||
| pH | 3 | 19 | 0 | ||
| Arsenic, dry weight | 5 | 18 | 0 | ||
| Chlorine, total residual | 2 | 14 | 0 | ||
| Selenium, dry weight | 3 | 12 | 0 | ||
| Copper, dry weight | 3 | 12 | 0 | ||
| Cadmium, dry weight | 3 | 12 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 12 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 12 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 12 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 12 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 12 | 0 | ||
| Level of pathogen requirements achieved | 2 | 8 | 0 | ||
| Description of pathogen option used | 2 | 8 | 0 | ||
| Vector attraction reduction alternative used | 2 | 8 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 8 | 0 | ||
| Nickel, total [as Ni] | 2 | 6 | 0 | ||
| Pollutant table from 503.13 | 1 | 5 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 4 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 4 | 0 | ||
| Annual amt of sludge incinerated | 1 | 4 | 0 | ||
| Annual amount of sludge land applied | 1 | 4 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 4 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 4 | 0 | ||
| Annual amt sludge transported interstate | 1 | 4 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 4 | 0 | ||
| Fecal coliform | 1 | 3 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 3 | 0 | ||
| Annual sludge production, total | 1 | 3 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 3 | 0 | ||
| Boundary areas | 1 | 3 | 0 | ||
| Salmonella | 1 | 3 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0128368.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, TX0128368.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 TX0128368 there.
Nearby on the register
- Discharge permits in Montgomery County
- Every permit record in Montgomery County, A to Z
- Discharge permits in Texas
- Every permit record in Texas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.