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Clean Water Act discharge permit · NPDES TXR05GA42

GULF COAST LIMESTONE - ROACH RD, Humble, TX: NPDES TXR05GA42 discharge permit, effluent exceedances, inspections, penalties

GULF COAST LIMESTONE - ROACH RD, held by Gulf Coast Limestone, Inc., holds NPDES permit TXR05GA42. EPA’s file records it issued March 29, 2023 and expiring August 13, 2026.

GULF COAST LIMESTONE - ROACH RD, Humble, Texas: Coverage under a general permit TXR05GA42, held by Gulf Coast Limestone, Inc.; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued March 29, 2023, term to August 13, 2026.

  • pH: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Solids, total suspended: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Arsenic, total [as As]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Barium, total [as Ba]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Cadmium, total [as Cd]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Chromium, total [as Cr]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Copper, total [as Cu]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Lead, total [as Pb]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Manganese, total [as Mn]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Nickel, total [as Ni]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Silver, total [as Ag]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Zinc, total [as Zn]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Selenium, total [as Se]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Mercury, total [as Hg]: 1 limit, 0 violations of any kind, 0 effluent exceedances.

Texas holds 8,480 Industrial stormwater coverages of this permit type in EPA’s file; 4,339 were issued before TXR05GA42. Gulf Coast Limestone, Inc. holds 3 permits in Texas.

Other permits held by Gulf Coast Limestone, Inc.

Coverages issued nearest TXR05GA42

GULF COAST LIMESTONE - ROACH RD among its neighbors

EPA’s permit file holds 94 discharge permits in the Garners Bayou subwatershed (HUC 120401040602), TXR05GA42 among them.

Other permits in the Garners Bayou subwatershed (HUC 120401040602)

What the register holds for GULF COAST LIMESTONE - ROACH RD: its NPDES ID, its permit type and status, its dates, its address in Humble, Texas, and 14 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR05GA42.

Identity

Facility as filedGULF COAST LIMESTONE - ROACH RD
Permittee as filedGulf Coast Limestone, Inc.
NPDES IDTXR05GA42
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
ProgramIndustrial stormwater
IssuedMarch 29, 2023
Expiration dateAugust 13, 2026
AddressHumble, TX 77396
SubwatershedGarners Bayou (HUC 120401040602)

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
pH200
Solids, total suspended100
Arsenic, total [as As]100
Barium, total [as Ba]100
Cadmium, total [as Cd]100
Chromium, total [as Cr]100
Copper, total [as Cu]100
Lead, total [as Pb]100
Manganese, total [as Mn]100
Nickel, total [as Ni]100
Silver, total [as Ag]100
Zinc, total [as Zn]100
Selenium, total [as Se]100
Mercury, total [as Hg]100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TXR05GA42.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR05GA42.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR05GA42.

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 TXR05GA42.

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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 TXR05GA42, held by Gulf Coast Limestone, Inc. for the GULF COAST LIMESTONE - ROACH RD facility in Humble, Texas, under the industrial stormwater program. The register lists the permit as administratively continued, with 14 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.