Clean Water Act discharge permit · NPDES TXG112864
SOUTHLAKE MCR PLANT, Southlake, TX: NPDES TXG112864 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 20Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
SOUTHLAKE MCR PLANT, held by Smyrna Ready Mix Concrete, LLC, holds NPDES permit TXG112864. EPA’s file records it issued June 30, 2021 and expiring November 6, 2021. 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.
What the register holds for SOUTHLAKE MCR PLANT: its NPDES ID, its permit type and status, its dates, its address in Southlake, Texas, and 20 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXG112864.
Identity
| Facility as filed | SOUTHLAKE MCR PLANT |
|---|---|
| Permittee as filed | Smyrna Ready Mix Concrete, LLC |
| NPDES ID | TXG112864 |
| 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 | June 30, 2021 |
| Expiration date | November 6, 2021 |
| Address | Southlake, TX 76092 |
| Subwatershed | Frog Bottom-Red River (HUC 111302010706) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 20Pollutants on file
- 20Under a numeric limit
- 0With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| pH | 2 | 0 | 0 | ||
| Solids, total suspended | 1 | 0 | 0 | ||
| Oil & Grease | 1 | 0 | 0 | ||
| Arsenic, total [as As] | 1 | 0 | 0 | ||
| Barium, total [as Ba] | 1 | 0 | 0 | ||
| Cadmium, total [as Cd] | 1 | 0 | 0 | ||
| Chromium, total [as Cr] | 1 | 0 | 0 | ||
| Copper, total [as Cu] | 1 | 0 | 0 | ||
| Lead, total [as Pb] | 1 | 0 | 0 | ||
| Manganese, total [as Mn] | 1 | 0 | 0 | ||
| Nickel, total [as Ni] | 1 | 0 | 0 | ||
| Silver, total [as Ag] | 1 | 0 | 0 | ||
| Zinc, total [as Zn] | 1 | 0 | 0 | ||
| Selenium, total [as Se] | 1 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 1 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 1 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 0 | 0 | ||
| Mercury, total [as Hg] | 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 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TXG112864.
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 TXG112864.
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
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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 TXG112864 there.
Nearby on the register
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- Discharge permits in Texas
- Every permit record in Texas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.