Clean Water Act discharge permit · NPDES TXG110731
MUSTANG RIDGE PLANT, Austin, TX: NPDES TXG110731 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 20Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
MUSTANG RIDGE PLANT, held by TEX MIX PARTNERS LTD, holds NPDES permit TXG110731. EPA’s file records it issued February 17, 2012 and expiring November 7, 2016. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MUSTANG RIDGE PLANT |
|---|---|
| Permittee as filed | TEX MIX PARTNERS LTD |
| NPDES ID | TXG110731 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | February 17, 2012 |
| Expiration date | November 7, 2016 |
| Address | Austin, TX 78747 |
| Subwatershed | Maha Creek (HUC 120903010301) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 20Pollutants on file
- 20Under a numeric limit
- 18With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 1 | 45 | 3 | April 30, 2015 | 135% over the limit |
| pH | 2 | 88 | 1 | May 31, 2014 | |
| Oil & Grease | 1 | 42 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 41 | 0 | ||
| Arsenic, total [as As] | 2 | 7 | 0 | ||
| Barium, total [as Ba] | 2 | 7 | 0 | ||
| Cadmium, total [as Cd] | 2 | 7 | 0 | ||
| Chromium, total [as Cr] | 2 | 7 | 0 | ||
| Copper, total [as Cu] | 2 | 7 | 0 | ||
| Lead, total [as Pb] | 2 | 7 | 0 | ||
| Manganese, total [as Mn] | 2 | 7 | 0 | ||
| Nickel, total [as Ni] | 2 | 7 | 0 | ||
| Silver, total [as Ag] | 2 | 7 | 0 | ||
| Zinc, total [as Zn] | 2 | 7 | 0 | ||
| Selenium, total [as Se] | 2 | 7 | 0 | ||
| Mercury, total [as Hg] | 2 | 7 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 3 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 3 | 0 | ||
| Whole effluent toxicity - retest #1 | 1 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 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 TXG110731.
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, TXG110731.
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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 TXG110731 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.