Clean Water Act discharge permit · NPDES TXR05FH52

SOUTH TEXAS MINING DBA M & R AGGREGATES, Rio Grande City, TX: NPDES TXR05FH52 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
14Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

SOUTH TEXAS MINING DBA M & R AGGREGATES, held by South Texas Mining, LLC, holds NPDES permit TXR05FH52. EPA’s file records it issued November 12, 2021 and expiring August 13, 2026.

SOUTH TEXAS MINING DBA M & R AGGREGATES, Rio Grande City, Texas: Coverage under a general permit TXR05FH52, held by South Texas Mining, LLC; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued November 12, 2021, term to August 13, 2026.

Solids, total suspended: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Nitrite + Nitrate total [as N]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Arsenic, total [as As]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Barium, total [as Ba]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Cadmium, total [as Cd]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Chromium, total [as Cr]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Copper, total [as Cu]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Lead, total [as Pb]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Manganese, total [as Mn]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Nickel, total [as Ni]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Silver, total [as Ag]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Zinc, total [as Zn]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Selenium, total [as Se]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Mercury, total [as Hg]: 2 limits, 0 violations of any kind, 0 effluent exceedances.

Texas holds 8,480 Industrial stormwater coverages of this permit type in EPA’s file; 1,898 were issued before TXR05FH52.

Coverages issued nearest TXR05FH52

November 12, 2021: BROOKSHIRE BROTHERS, Lufkin, TXR05FH47, held by Brookshire Brothers, Inc.
November 12, 2021: TARLTON SUPPLY, Brenham, TXR05FH48, held by MIC Group, LLC
November 12, 2021: VALERO MCKEE REFINERY, Sunray, TXR05FH49, held by Diamond Shamrock Refining Company, L.P.
November 12, 2021: OLDCASTLE BUILDINGENVELOPE, Grand Prairie, TXR05FH50, held by Oldcastle BuildingEnvelope, Inc.
November 12, 2021: MCCOMMAS BLUFF LANDFILL, Dallas, TXR05FH51, held by City of Dallas
November 12, 2021: FEDEX EXPRESS- HOUA, Houston, TXR05FH53, held by Federal Express Corporation
November 12, 2021: TAS ENERGY, Houston, TXR05FH54, held by TAS Energy Inc.
November 12, 2021: TAS ENERGY, Houston, TXR05FH55, held by TAS Energy Inc.
November 12, 2021: TAS ENERGY, Houston, TXR05FH56, held by TAS Energy Inc.
November 12, 2021: FEDEX EXPRESS- DRTA, Del Rio, TXR05FH57, held by Federal Express Corporation

SOUTH TEXAS MINING DBA M & R AGGREGATES among its neighbors

EPA’s permit file holds 3 discharge permits in the Salado Creek subwatershed (HUC 130900010605), TXR05FH52 among them.

Other permits in the Salado Creek subwatershed (HUC 130900010605)

LOPEZ READY MIX PLANT 2, Rio Grande City: TXG113270, minor permit, permit term to November 6, 2026
SOUTH TEXAS SAND AND GRAVEL, Rio Grande City: TXR05FK14, minor permit, permit term to August 13, 2026

What the register holds for SOUTH TEXAS MINING DBA M & R AGGREGATES: its NPDES ID, its permit type and status, its dates, its address in Rio Grande City, Texas, and 14 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR05FH52.

Identity

Facility as filed	SOUTH TEXAS MINING DBA M & R AGGREGATES
Permittee as filed	South Texas Mining, LLC
NPDES ID	TXR05FH52
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
Program	Industrial stormwater
Issued	November 12, 2021
Expiration date	August 13, 2026
Address	Rio Grande City, TX 78582
Subwatershed	Salado Creek (HUC 130900010605)

Effluent limits and exceedances

14Pollutants on file
14Under 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
Solids, total suspended	2	0	0
Nitrite + Nitrate total [as N]	2	0	0
Arsenic, total [as As]	2	0	0
Barium, total [as Ba]	2	0	0
Cadmium, total [as Cd]	2	0	0
Chromium, total [as Cr]	2	0	0
Copper, total [as Cu]	2	0	0
Lead, total [as Pb]	2	0	0
Manganese, total [as Mn]	2	0	0
Nickel, total [as Ni]	2	0	0
Silver, total [as Ag]	2	0	0
Zinc, total [as Zn]	2	0	0
Selenium, total [as Se]	2	0	0
Mercury, total [as Hg]	2	0	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TXR05FH52.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR05FH52.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR05FH52.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES TXR05FH52.

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, TXR05FH52.

Start the watch

How we handle your data → Privacy

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This page covers NPDES permit TXR05FH52, held by South Texas Mining, LLC for the facility SOUTH TEXAS MINING DBA M & R AGGREGATES in Rio Grande City, TX. The register lists a minor discharger class, 14 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance.