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Clean Water Act discharge permit · NPDES TXG110875

OK CONCRETE PLANT 7 WINDTHORST, Windthorst, TX: NPDES TXG110875 discharge permit, effluent exceedances, inspections, penalties

OK CONCRETE PLANT 7 WINDTHORST, held by OK CONCRETE COMPANY, holds NPDES permit TXG110875, which discharges to Lake Arrowhead. EPA’s file records it issued January 25, 2017 and expiring November 7, 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.

Identity

Facility as filedOK CONCRETE PLANT 7 WINDTHORST
Permittee as filedOK CONCRETE COMPANY
NPDES IDTXG110875
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJanuary 25, 2017
Expiration dateNovember 7, 2021
AddressWindthorst, TX 76389
Receiving waterLAKE ARROWHEAD
SubwatershedWest Little Post Oak Creek (HUC 111302090301)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH2520
Solids, total suspended1260
Oil & Grease1260
Flow, in conduit or thru treatment plant1260
Arsenic, total [as As]1120
Barium, total [as Ba]1120
Cadmium, total [as Cd]1120
Chromium, total [as Cr]1120
Copper, total [as Cu]1120
Lead, total [as Pb]1120
Manganese, total [as Mn]1120
Nickel, total [as Ni]1120
Silver, total [as Ag]1120
Zinc, total [as Zn]1120
Selenium, total [as Se]1120
Mercury, total [as Hg]1120
LC50 Pass/Fail Static 24Hr Acute D. Pulex160
LC50 Pass/Fail Static 24Hr Acute Pimephales promelas160
Whole effluent toxicity - retest #1100
Whole effluent toxicity - retest #2100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TXG110875.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXG110875.

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.

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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 TXG110875 there.

Nearby on the register

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

What this page shows

This public-records page covers the NPDES discharge permit TXG110875, held by OK CONCRETE COMPANY for OK CONCRETE PLANT 7 WINDTHORST in Windthorst, TX, which discharges to LAKE ARROWHEAD and is listed as administratively continued. The file lists 20 pollutants on file, 20 of them under a numeric limit, and 18 with a violation of any kind.