Texas NPDES permit search
Status, expiry and violations for 1,243 municipal wastewater permits · issued by TCEQ as TPDES permits
In short
How do I look up an NPDES permit in Texas?
Search this page by permit number or plant name for a municipal plant’s permit status, expiry date and violations. For the official file, search the TCEQ Permit Search Portal or the TCEQ Central Registry. EPA’s ECHO database shows the monitoring results and violations of every permit. The 5,747 industrial permits in Texas are listed in Klarifi with a free account.
Links to official sources checked September 2026.
Effective
1,052
Administratively continued
178
Expired
12
Plants with effluent violations, 3 years
1,030
Where to find official Texas NPDES records
Texas Commission on Environmental Quality (TCEQ) runs the NPDES program in Texas under authorization from EPA Region 6, as the Texas Pollutant Discharge Elimination System (TPDES). It issues and enforces the permits and keeps the official file: applications, permits, fact sheets and monitoring reports. EPA still issues the permits on tribal lands and in federal waters offshore. TCEQ website ↗
permits · applications
Choose “All of Texas” or enter a city, ZIP or county, type the business name or permit number under “Keyword or Permit Number”, tick Water > Wastewater and click Search. TCEQ moved its list of pending wastewater applications here in September 2026.
permits
Use “Program ID Search” with the permit number, or “Regulated Entity Search” for a site, whose page lists its permits and other program IDs with their status.
permit documents
Pick a record series such as “WQ / Municipal Wastewater Discharge” and search by regulated entity name, RN or primary ID; TCEQ suggests looking these up in the Central Registry first. Paper and microfilm records need a public information request.
permits · DMRs · inspections · violations · enforcement
EPA’s Enforcement and Compliance History Online. Search water facilities by permit number, name or city; the Detailed Facility Report lists inspections, violations and enforcement actions, and Effluent Charts plot monitoring results against the permit limits.
- Permit numbers
- TCEQ numbers TPDES permits “WQ” plus ten digits (WQ0016107001), and each permit also has an EPA number, TX plus seven digits (TX0142409). TCEQ’s water quality permit search takes either.
- Discharge monitoring reports
- Electronically, through EPA’s NetDMR, required since December 2016.
- Violations and enforcement
- TCEQ’s compliance history ratings ↗ and TCEQ’s investigation reports ↗
Industrial and commercial NPDES permits in Texas
Most NPDES permits are not held by municipal plants. EPA’s permit database lists 5,747 individual permits in force for industrial and commercial facilities in Texas (manufacturers, food processors, mines, power plants, landfills), 621 of them major dischargers, plus 6,734 facilities covered by a general permit, mostly for stormwater. 1,068 of the individual permits recorded at least one effluent violation in the last three years.
| Facility | Permit | Status | Expires | Effluent violations |
|---|
Unlock 5,747 industrial permits in Texas
Search every industrial and commercial discharger in Texas by name or permit number, with permit status, expiry and violation history. Free with a Klarifi account.
Industrial and commercial NPDES permits in Texas: permits in force (effective or administratively continued) held by facilities EPA does not class as publicly owned treatment works or federal facilities. Source: EPA ICIS-NPDES via Klarifi, October 2026.
Violations at Texas wastewater plants
1,030 of the 1,243 municipal plants on this page recorded at least one effluent violation, a monitored value above a permit limit, in the last three years, and 1,060 had a violation of any kind, including late or missing monitoring reports. Each plant’s page shows its own count. EPA’s enforcement records list 457 formal cases naming Texas wastewater plants, 146 of them since fiscal year 2020, with $9.6 million in penalties assessed. Enforcement cases in Texas →
Permit renewals by year
An NPDES permit runs for five years. To keep discharging, a plant must apply for renewal at least 180 days before the expiry date, and the renewed permit usually arrives with tighter effluent limits, new monitoring requirements or a compliance schedule. That is why the year a permit expires is the year a plant starts budgeting for upgrades: nutrient removal, disinfection, capacity or controls.
2029: 211 permits
2030: 183 permits
2031: 159 permits
Largest permit holders in Texas
| Facility | City | Avg flow (MGD) | Design (MGD) | NPDES permit | Status | Expires | Violations (3y) |
|---|---|---|---|---|---|---|---|
| City Of Dallas Central WWTP | Dallas | 118.1 | 200 | TX0047830 | Effective | Apr 2027 | 10 |
| Village Creek Reclamation Facility | Arlington | 147.27 | 166 | TX0047295 | Effective | Jan 2029 | 3 |
| Dos Rios Water Recycling Center | San Antonio | 124.77 | 125 | TX0077801 | Administratively continued | Jun 2025 | 44 |
| Walnut Creek WWTP | Austin | 69.41 | 100 | TX0046981 | Administratively continued | Mar 2025 | 0 |
| South Austin Regional WWTP Electrical | Del Valle | 52.19 | 75 | TX0071889 | Effective | Jun 2031 | 0 |
| Southwest WWTP | Houston | 55 | 60 | TX0062995 | Effective | Sep 2027 | 70 |
| Washburn Tunnel Facility | Pasadena | 15.54 | 54.7 | TX0052591 | Administratively continued | Apr 2019 | 11 |
| Hillebrandt WWTP | Beaumont | 34.23 | 46 | TX0046990 | Effective | Apr 2029 | 22 |
| Leon Creek Water Recycling Center | San Antonio | 41.23 | 46 | TX0052639 | Effective | Jul 2027 | 5 |
| Salado Creek WWTP | San Antonio | — | 46 | TX0052647 | Effective | May 2031 | — |
Texas NPDES permits: questions
NPDES permit search in other states
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 12, 2026.
Wastewater terms: NPDES permit · POTW · Significant industrial user · MGD · Biosolids · Filter press · all terms