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Clean Water Act discharge permit · NPDES TXG110920

CEMEX KATY PLANT, Katy, TX: NPDES TXG110920 discharge permit, effluent exceedances, inspections, penalties

CEMEX KATY PLANT, held by CEMEX CONSTRUCTION MATERIALS S, holds NPDES permit TXG110920. EPA’s file records it issued January 22, 2009 and expiring November 7, 2011.

CEMEX KATY PLANT, Katy, Texas: Coverage under a general permit TXG110920, held by CEMEX CONSTRUCTION MATERIALS S; Administratively continued (past its expiration date and still in force until reissued); issued January 22, 2009, term to November 7, 2011.

  • Arsenic, total [as As]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Barium, total [as Ba]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Cadmium, total [as Cd]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Chromium, total [as Cr]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Copper, total [as Cu]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Lead, total [as Pb]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Manganese, total [as Mn]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Nickel, total [as Ni]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Silver, total [as Ag]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Zinc, total [as Zn]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Selenium, total [as Se]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Mercury, total [as Hg]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • pH: 2 limits, 7 violations of any kind, 0 effluent exceedances.
  • LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit, 4 violations of any kind, 0 effluent exceedances.
  • LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 1 limit, 4 violations of any kind, 0 effluent exceedances.
  • Solids, total suspended: 1 limit, 3 violations of any kind, 0 effluent exceedances.
  • Oil & Grease: 1 limit, 3 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 1 limit, 3 violations of any kind, 0 effluent exceedances.
  • Whole effluent toxicity - retest #1: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Whole effluent toxicity - retest #2: 1 limit, 0 violations of any kind, 0 effluent exceedances.

Other permits held by CEMEX CONSTRUCTION MATERIALS S

CEMEX KATY PLANT among its neighbors

EPA’s permit file holds 78 discharge permits in the Willow Fork subwatershed (HUC 120401040101), TXG110920 among them. Its county holds 314, 3 of them major permits; TXG110920 is a minor permit.

Other permits in the Willow Fork subwatershed (HUC 120401040101)

  • 04913-1000 KATY SAMS CLUB, Katy: TXR1587VN, minor permit, discharging to WILLOW FORK, permit term to March 4, 2028
  • ALTIUM PACKAGING, Katy: TXR05EX90, minor permit, permit term to August 13, 2026
  • AWRY READY MIX CONCRETE, Brookshire: TXG113277, minor permit, permit term to November 6, 2026
  • AZALEA, Brookshire: TXR1501XE, minor permit, discharging to WILLOW FORK BUFFALO BAYOU, permit term to March 4, 2028
  • AZALEA, Brookshire: TXR1514XJ, minor permit, discharging to WILLOW FORK BUFFALO BAYOU 1014I, permit term to March 4, 2028
  • BAKER STEEL, Katy: TXR05FA52, minor permit, permit term to August 13, 2026
  • BERNARD CONTROLS, Katy: TXRNECQ05, minor permit, permit term to August 13, 2026
  • BLUEBONNET - LAND DEVELOPMENT, Brookshire: TXR1525YB, minor permit, discharging to BROOKSHIRE CREEK 1202G, permit term to March 4, 2028
  • BLUEBONNET - LAND DEVELOPMENT, Brookshire: TXR1572YB, minor permit, discharging to BROOKSHIRE CREEK 1202G, permit term to March 4, 2028
  • CEMEX KATY READY MIX PLANT, Katy: TXG111763, minor permit, discharging to SOUTH MYBE CREEK, permit term to November 7, 2021

Identity

Facility as filedCEMEX KATY PLANT
Permittee as filedCEMEX CONSTRUCTION MATERIALS S
NPDES IDTXG110920
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 22, 2009
Expiration dateNovember 7, 2011
AddressKaty, TX 77494
SubwatershedWillow Fork (HUC 120401040101)

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
Arsenic, total [as As]290
Barium, total [as Ba]290
Cadmium, total [as Cd]290
Chromium, total [as Cr]290
Copper, total [as Cu]290
Lead, total [as Pb]290
Manganese, total [as Mn]290
Nickel, total [as Ni]290
Silver, total [as Ag]290
Zinc, total [as Zn]290
Selenium, total [as Se]290
Mercury, total [as Hg]290
pH270
LC50 Pass/Fail Static 24Hr Acute D. Pulex140
LC50 Pass/Fail Static 24Hr Acute Pimephales promelas140
Solids, total suspended130
Oil & Grease130
Flow, in conduit or thru treatment plant130
Whole effluent toxicity - retest #1100
Whole effluent toxicity - retest #2100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TXG110920.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXG110920.

Inspections

EPA’s inspection file holds no inspection for NPDES TXG110920.

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 TXG110920.

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Nearby on the register

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

What this page shows

This public-records page covers NPDES permit TXG110920 for CEMEX KATY PLANT in Katy, TX, held by CEMEX CONSTRUCTION MATERIALS S, which is listed as administratively continued and classed as a minor discharger. The facts show 20 pollutants on file, 20 under a numeric limit, 18 with a violation of any kind, and 0 with an effluent exceedance, within the Willow Fork subwatershed (HUC 120401040101).