Clean Water Act discharge permit · NPDES TXR05GI91

TXM - OCONNOR READY MIX, San Antonio, TX: NPDES TXR05GI91 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
15Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

TXM - OCONNOR READY MIX, held by Texas Materials Group, Inc., holds NPDES permit TXR05GI91. EPA’s file records it issued February 21, 2024 and expiring August 13, 2026.

TXM - OCONNOR READY MIX, San Antonio, Texas: Coverage under a general permit TXR05GI91, held by Texas Materials Group, Inc.; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued February 21, 2024, term to August 13, 2026.

pH: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Solids, total suspended: 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.
Iron, total [as Fe]: 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; 5,414 were issued before TXR05GI91. Texas Materials Group, Inc. holds 154 permits in Texas.

Other permits held by Texas Materials Group, Inc.

TEXAS CONCRETE HUTTO PLANT, Hutto: TXG113106, issued April 7, 2022
TAYLOR CBP & HMA, Taylor: TXG113240, issued October 20, 2022
BOLM RD CBP, Austin: TXG113456, issued September 7, 2023
TXM - TAYLOR READY MIX, Taylor: TXG113638, issued February 21, 2024
TXM - SAN MARCOS READY MIX, San Marcos: TXG113639, issued February 21, 2024
TXM - ROUND ROCK READY MIX, Round Rock: TXG113640, issued February 21, 2024
TXM - LOCKHART READY MIX, Lockhart: TXG113641, issued February 21, 2024
TXM - LEANDER READY MIX, Leander: TXG113642, issued February 21, 2024
TXM - KIRBY READY MIX, San Antonio: TXG113643, issued February 21, 2024
TXM - GEORGETOWN READY MIX, Georgetown: TXG113645, issued February 21, 2024

Coverages issued nearest TXR05GI91

February 21, 2024: PLT 42, Corpus Christi, TXR05GI86, held by Anderson Columbia Co., Inc.
February 21, 2024: PLT 43 AND PIT, Robstown, TXR05GI87, held by Anderson Columbia Co., Inc.
February 21, 2024: TXM - WESTSIDE READY MIX, San Antonio, TXR05GI88, held by Texas Materials Group, Inc.
February 21, 2024: TXM - VOLENTE READY MIX, Austin, TXR05GI89, held by Texas Materials Group, Inc.
February 21, 2024: TXM - SPICEWOOD READY MIX, Marble Falls, TXR05GI90, held by Texas Materials Group, Inc.
February 21, 2024: TXM - LAGO VISTA READY MIX, Lago Vista, TXR05GI92, held by Texas Materials Group, Inc.
February 22, 2024: MTX 1, Montgomery, TXR05GI93, held by Mtx Materials, LP
February 23, 2024: JR CONSTRUCTION HIRSCH RD, Houston, TXR05GI94, held by Reyes Pallet, LLC
February 23, 2024: ISOLATEK INTERNATIONAL, Houston, TXR05GI95, held by Usmpc Buyer, Inc
February 23, 2024: DURA-LINE, Gainesville, TXR05GI96, held by Dura-Line LLC

TXM - OCONNOR READY MIX among its neighbors

EPA’s permit file holds 86 discharge permits in the Mud Creek subwatershed (HUC 121003010103), TXR05GI91 among them. Its county holds 2,157, 12 of them major permits; TXR05GI91 is a minor permit.

Other permits in the Mud Creek subwatershed (HUC 121003010103)

1604 & OCONNOR TOWNHOMES, San Antonio: TXR1509OZ, minor permit, discharging to BEITEL CREEK, permit term to March 4, 2028
27005 TRILL HILL, San Antonio: TXR1526YE, minor permit, discharging to MUSTANG CREEK, permit term to March 4, 2028
405 HEAVENS WAY, San Antonio: TXR1595YN, minor permit, discharging to MUSTANG CREEK, permit term to March 4, 2028
5718 DARMONDALE BLVD, San Antonio: TXR1528UR, minor permit, discharging to DRY TRIBUTARY TO UPPER CIBOLO CREEK, permit term to March 4, 2028
ALAMAR, San Antonio: TXR1517SB, minor permit, discharging to ELM WATERHOLE CREEK, permit term to March 4, 2028
ALAMAR, San Antonio: TXR1560YO, minor permit, discharging to ELM WATERHOLE CREEK, permit term to March 4, 2028
ALAMO NEX I-35 IMPROVEMENT, San Antonio: TXR1503QH, minor permit, discharging to SALADO CREEK, permit term to March 4, 2028
AUTOZONE 5072, San Antonio: TXR1581YK, minor permit, discharging to CIBOLO CREEK, permit term to March 4, 2028
BEAST GYM, San Antonio: TXR1587UU, minor permit, discharging to ELM WATERHOLE CREEK, permit term to March 4, 2028
BEXAR CONCRETE WORKS, San Antonio: TXR1596YK, minor permit, discharging to ELM WATERHOLE CREEK, permit term to March 4, 2028

What the register holds for TXM - OCONNOR READY MIX: its NPDES ID, its permit type and status, its dates, its address in San Antonio, Texas, and 15 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR05GI91.

Identity

Facility as filed	TXM - OCONNOR READY MIX
Permittee as filed	Texas Materials Group, Inc.
NPDES ID	TXR05GI91
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	February 21, 2024
Expiration date	August 13, 2026
Address	San Antonio, TX 78247
Subwatershed	Mud Creek (HUC 121003010103)

Effluent limits and exceedances

15Pollutants on file
15Under 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	4	0	0
Solids, total suspended	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
Iron, total [as Fe]	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 TXR05GI91.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR05GI91.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR05GI91.

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 TXR05GI91.

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Nearby on the register

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

This public-records page covers the Clean Water Act discharge permit NPDES TXR05GI91, held by Texas Materials Group, Inc. for TXM - OCONNOR READY MIX in San Antonio, Texas, under the industrial stormwater program. The page lists a status of administratively continued, a minor discharger class, 15 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance.